Fact    

The Species
The Fastest
Fastest animal on Land     Cheetah . Reaching speeds of 70 MPH (not long though)
Fastest Land animal long distance     Pronghorn or American Antelope at 35 mph for 4 hours or 55 mph at 1/2 hour.
Fastest Bird Hunting     Peregrine Falcon dives at speeds over 200 MPH
Fastest Bird Flying     Racing Pigeon at about 100 MPH
Fastest Swimming Pinniped     California Sea Lion at 25 MPH
Fastest Sea Star     Sun Star, Pycnopodia helianthoides 75 cm per minute (0.027 miles per hour)
Fastest Dog     Greyhound at 45 MPH
Fastest Fish     Cosmopolitan Sailfish  at 68 mph
Fastest Bird Non Flight     Ostrich  can reach speeds of 43 mph
Fastest Insect Runner      Cockroach at 3MPH
Fastest Insect:      Dragonfly  can move at  36 mph
Fastest Mouth (sea)     Frogfish.  6 milliseconds to open, swallow and close.
Fastest Swimming Bird     Gentoo Penguin  can swim underwater up to 22 Mph
Fastest Dolphin     Dall's porpoise at 56 MPH
Fastest Whale     Killer Whale, Orcinus orca at 56 MPH
Fastest Reptile     Spiny-Tailed Iguana at about 21 MPH
Fastest Growing Plant     Bamboo can grow at a rate of 3 feet per day.
Fastest Growing Aquatic Plant     Caulerpa taxifolia, also known as killer weed grows at 3 inches per day.
Fastest Caterpillar     Mother-of-Pearl Moth at 15 inches per second
Fastest Dinosaur      Dromiceiomimus. about 37 mph
     

Largest
Largest Sea Cucumber     Members of the genus Stichopus have been measured up to 40 inches long and 8 inches in diameter.
Largest Living Organism     Humongous Fungus. Estimated to cover over 2,200 acres and at least 2400 years old. (Oregon) Thanks to Michael Rogers for this fast fact.
Largest Living Organism (second)     Grove of Aspen Trees in Utah. Named "Pando". 660 Tons, 200 acres
Largest Insect Egg     Malaysian stick insect (Heteropteryx dilitata) at .05 inches.
Largest Invertebrate     Architeuthis dux (Giant Squid) Up to 59 foot and over 1 ton (so far)
Largest Gastropod     Syrinx aruanus. Australia. In 1979, a 40 pound animal was found with a shell that measured 30.4 inches in length and 39.75 inches in girth.
Largest Clam     Giant Clam is 4ft. 6in. across
Largest Sea Urchin     Sperosoma giganteum Test diameter of 38 cm (13 inches)
Largest Wave (Ocean)     524m high hit Lituya Bay on July 9, 1958 caused by a 8.3 Earthquake
Largest Octopus     Pacific Giant Octopus with an average arm span of 8ft. 2in.
Largest Carnivore     Sperm Whale.
Largest Carnivore  (Ever)     Giganotosaurus carolinii was 40 ft long, and weighed 8 tons. Looked like a T-Rex.
Largest Fish     Plankton-Feeding Whale Shark (Rhincodon typus) at 41 feet 6 inches long.
Largest Flying Bird     Great Bustard which can  weigh as much as 32 pounds and are 4 feet long.
Largest North American Animal     Buffalo (Bison)
Largest Pigeon     Giant Ruck. Up to 4 Lbs
Largest Creature (length)     Artic Lion's Mane. (Jellyfish). Bell was 7 feet wide and tentacles over 120 feet long.
Largest Animal     Blue Whale  averages 110 feet long and a whopping  209 tons
Largest Pantherine      Tiger
Largest Land mammal     African Bush Elephant reaches 13 feet high and weights 8 tons.
Largest Frog     African Goliath Frog is about 11 inches and about the size of a rabbit.
Largest Amphibian      Chinese Giant Salamander grows about 6ft.in length weighs 132
Largest Bear     Kodiak Bear and weighed 1600lbs.
Largest Snake     Reticulated Python  averages between 26-32 feet long
Largest Bug     Stick Insect averages 15 inches long
Largest Reptile     Saltwater Crocodile averages 16 feet long and 1,150 pounds
Largest Lizard      Komodo Dragon  at 9-10 feet long and up to 300 pounds
Largest Dolphin     Killer whale (Orca) at 32 feet long and  21,000 pounds
Largest Shark     Great White Shark  reaches up to 21 feet and over 2 tons
Largest Shark on record     Whale Shark. 59 feet long, captured in Thailand in 1919.
Largest Invertebrate     Giant Squid reaches up to at least 60 feet long
Largest Rodent (ever)     Phoberomys Pattersoni. Now extinct weighed over 1500 lb !!!.
Largest Rodent (current)     Capybaras  in South America weighs about 100 lbs. 
Largest Sea Star     Evasterias echinosomo 96 cm (37.79 inches) in diameter, weight 5 kg (11 pounds), collected in the North Pacific
Largest Turtle      Leatherback Turtle
Largest Swan     Trumpeter Swan. Wingspan up to 9 feet.
Largest Seaweed     Macrocystis pyrifera, a brown algae called the giant kelp. The longest recorded length is 54 metres long! M. pyrifera is the type of kelp that makes up the majority of the giant kelp forests off the California coast.
Largest Sponge     Xestospongia muta, the barrel sponge, found in tropical coastal waters. Some individuals in the Caribbean measure 6-8 feet tall, and 6-8 feet across.
Largest Jellyfish     Lion's Mane Jellyfish. Their Bells can reach 8 feet across and their tentacles can be more than 200 feet long
Largest Mouth on Land     Hippo. They can open their mouth 180 degrees.
Largest Mouth anywhere     Bowhead Whale Average up to 60 feet long and 20 foot mouth.
Largest Bird Egg     Ostrich
Largest Land Carnivore     Polar Bear
Largest Raptor     Andean Condor. With a big 11 foot wingspan.
Largest Wingspan (Bird)     Wandering Albatross at 11 feet 11 inches
Largest Breed Hybrid Cat     Savannah Cat.
Largest Rabbit (domesticated)     Flemish Giant. 11-14 Lbs.
Largest Gastropod     Tridacna derasa, found on coral reefs in the South Pacific. One was collected on the Great Barrier Reef in 1917 that measured 49 inches by 29 inches, and weighed 579.5 pounds. The shell of a close relative, Tridacna gigas, was found off Ishigaki Island, Okinawa, Japan in 1956 measuring 45.25 inches in length and weighing 734 pounds
Largest Flower     Amorphophallus titanum height of 6 feet or more and opens to a diameter of three to four feet.
Largest Tree (USA)     Giant Sequoia in California's Sequoia National Park, 2000 to 2100 years old. Measures 275 feet tall and 30 feet across.
Largest Tree (world)     Australian Eucalyptus at 435 ft tall
Largest Little Cat      19.
Largest Single Animal Cell     African Ostrich egg.
Largest Spider     Goliath Bird eater. As large as 11 inches in leg span
Largest Moth     Atlas Moth. Wingspan of 12 inches.
Largest Invertebrate     The Atlantic Giant Squid. Can weigh as much as 2 metric tons.
Largest Crustacean     Giant spider crab Macrocheira kaempferi
Individuals can measure 12-14 inches across the body, with a claw span of 8-9 feet.
Largest Bat Species     Giant Fox bat is the largest bat in the world with its wingspan reaching more than six feet.
Largest Bat Colony     Bracken Cave in central Texas holds about 20 million individuals.
Largest Appetite     Blue Whale.  A blue whale eats up to 4 tons of krill everyday.
Largest Community Nest (bird)     African Social Weavers. 100 chamber nest. Measured 27 ft long x 6 ft high
Largest Tree Nest (bird)     Bald Eagle (Florida). 20 ft deep & 9.5 ft wide. Weighing almost 3 tons.
Largest Bird Nest (Ground)      Dusky Scrubfowl. 36 ft wide and 16 ft high. Over 300 tons of forest floor litter
Largest Vine     Great Vine at Hampton Court Palace, Greater London at 7 ft 1 in high and 114 ft long.
Largest Weed     Giant Hogweed. 12 feet tall with leaves as much as 36 inches long.
Largest Tree Girth (ever)     European Chestnut at 190 foot.
Largest Crocodilian     Estuarine or Saltwater Crocodile Crocodylus porosus at 23 ft long and larger.
Largest Eye     Atlantic Giant Squid at est. diameter of 20 inches.
Largest Insect Egg     Malaysian Stick Insect at 0.5 which is about the size of a peanut.
Largest Dinosaur Egg     Hypselosaurus priscus had eggs about 12 inches.
Largest Claws (Ever)     Therizinosaurus cheloniformis at 36 inches.
Largest Prehistoric Fish     Carcharodon megalodon is estimated at 45 foot
Largest Trilobite     Fossil trilobite 445 million-year-old specimen measures over 27.5 in in length.
Largest Marine Reserve     Heard Island and McDonald Islands Marine Reserve, Australia.  25,096 square mile.
Largest Freshwater Fish     Arapaima gigas (Catfish)  in the Amazon River. Up to 15 feet and 440 lbs
Largest Carnivorous Plant     Nepenthes, Vines grow as long as 10 meters.
Largest seaweed (world)     Brown Algae called kelp. Macrocystis pyrifera called giant kelp. up to 54 meters long
Largest Coral Reef     composed of roughly 3,000 individual reefs and 900 islands, 161 miles and can seen from outer space.
     
Tallest
Tallest Horse Breed    

Shire called Samson. He stood 21.2 and a half hands ( 7 ft 2 inches)
Tallest Dog     Irish Wolfhound can reach an average of 7 feet when standing.
Tallest & Biggest Bird     Ostrich  averages 9 feet tall and weighs 345 pounds
Largest Cow Breed     Chianina. Bulls can reach 6 feet high.
Tallest Land Animal     Giraffe averages 19 feet tall
Tallest Tree Nest (bird)     Marbled Murrelet at up to 148 foot.
Tallest Mammal     Giraffe (Giraffa camelopardalis). 19 feet tall but average 18 feet.
Tallest Dinosaur     Sauroposeidon. About 60 Feet Tall.
Tallest & Biggest Bird     Ostrich  averages 9 feet tall and weighs 345 pounds
Tallest Tree Nest (bird)     Marbled Murrelet at up to 148 foot.
Tallest Jumper (land animal)     Pumas.  15 feet high. Or 5 times it's own height
Tallest Jumper (body size considered)     Flea. They can jump 100 times their own height
Tallest Volcano (world)     Hawaii's Mauna Loa,  volcano is the world's largest mountain in cubic content with an estimated volume of 9,600 cubic miles and is 13,681 feet high.
Tallest Mountain (world)     Mt Everest on the border of Nepal, Tibet, and China is the world's tallest mountain and highest elevation with a peak at 29,035 feet
     
Thickest
Thickest Ice     Antarctica,
     
Coldest
Coldest Place on Earth     Antarctica. During Night.
Coldest Temperatures Recorded     Antarctica. -129 degrees F. 
     
Smallest
Smallest Sea Cucumber     Rhabdomolgus ruber, North Sea 10 mm (0.39 inches) in length
Smallest Wild Cat Breed     Rusty-Spotted cat from Sri Lanka.
Smallest Rabbit (domestic)     Netherland Dwarf at only 1 1/2 to 3 lbs.
Smallest Rodent     Pygmy Jerboa at only a couple inches.
Smallest Bat      Kitti’s hog-nosed bat Craseonycteridae thonglongyai  has a wingspan of less than 6 inches.
Smallest Incubation Period (bird)     Small Passerines. Only 11 Days
Smallest Crab     Pea crabs in the family Pinnotheridae are about .25 inches across the shell
Shortest Marine Fish     Schindleria praematurus, 12-19 mm in length, weight 2 mg
Smallest Turtle     Speckled Cape Tortoise. Shell length of between six and 9.6.
Smallest Breed Horse     Falebella of Argentina. The tallest one stands only 30inches at the shoulder.
Smallest Pony     "Little Pumpkin." He stood 14 inches and weighed only 20 lbs!
Smallest Cow Breed     Dexter.
Smallest Snake     Blind Snake only reaches about 6 inches.
Smallest Wingspan      Bee humming Bird only Two in a half inches 
Smallest Mammal     Bumble-Bee Bat
Smallest Sea Star     Leptychaster propinquus 1.83 cm (0.72 inches) total diameter
Smallest Raptor     Pygmy Falcons. Only 3 oz.
Smallest Bird     Hummingbird  is 2.5 inches long and only 0.06 oz
Smallest Dog Breed     Chihuahua
Smallest Breed of Cat       Singapura
Smallest Amphibian      Cuban Frog only 3/8 long
Smallest Soaring Bird     Swift
Smallest winged insect      Tanzanian parasitic Wasp it has a wingspan of 0.2mm.
Smallest Sea Urchin     Echinocyamus scaber Test diameter of 5.5 mm (0.21 inches)
Smallest Pinniped     Baikal Seal. Adults are 4 feet 6 inches and 140 pounds
Smallest Fish     Dwarfgoby.  Mature females reach only 8-10mm
Smallest Crab     Pea crabs in the family Pinnotheridae are about .25 inches across the shell
Smallest Egg Clutch     Albatrosses. They only lay an egg every 2 years.
Smallest Egg     West Indian Vervain Humming Bird. Only 0.39 in in length and 0.0132 oz
Smallest Reptile     British Virgin Islands gecko is only 7/10 in long
Smallest Nest (bird)     Cuban Bee and Vervain Hummingbirds. 0.78 in wide and  1.2 in deep.
Smallest Brained Dinosaurs     Stegosaurus at about 2.5 oz
     
Longest
Longest Flying Bird     Sooty Terns. They can go 3-10 years without landing.
Longest Fish     Whale Shark  averages 41 1/2  feet long.
Longest Worm     Boot Lace Worm. More than 180 feet long. (1864)
Longest Pregnancy     38 Months. Alpine Salamander of Southern Europe.
Longest Incubation (egg)     Australian Lyrebird takes 50 days.
Longest Flying (land bird)     Common Swift. Can go up to 3 years without landing.
Longest Time Underwater (bird)     Emperor Penguin can stay underwater for 18 minutes.
Longest wing span      Wondering Albatross . Measuring 10ft. 6in. from wingtip to wingtip 
Longest Hibernation       Marmots can Hibernate for 9 months a year
Longest Migration (Bird)     Artic Tern fly's over 25,000 miles to the southern ocean.
Longest Migration (Mammal)     Gray Whale migrates about 12,500 miles per year.
Longest Migration (Insect)     Desert Locust travels about 2,800 miles yearly.
Longest lived bird (captivity)     Sulfur-Crested Cockatoo at over 80 years old.
Longest Living Animal     Giant Tortoise lives up to 177 years
Longest Migration (Land animal)     Caribou travels about 3,700 miles yearly. Thanks Ed Pottie for correction Link for Fact Here
Longest Migration (Butterfly)     Monarch at about 2,000 miles.
Longest recorded tail feathers     Japanese Phoenix. With proper care my grown to 15-20 feet Thanks Micheal Leishman
Longest Tail Feathers     Crested Argus Pheasant at 5 feet 7 inches
Longest Snake     Reticulated Python. Averages longer than 20 ft 6 in. Record 32 ft 9 1/2 in
Longest Fangs (Snake)     Gaboon Viper. The snake was 6 ft long with 2 inch long fangs.
Longest Venomous Snake     King Cobra. Averages 12-15 foot long. Record was 18 ft 9 inches.
Longest Tail Dinosaur     Diplodocid Diplodocus at 43-45 ft long.
Heaviest Living Organism (world)     Pando aka The Trembling Giant in Utah, an Aspen tree. Est at 6,000 tons
     
Heaviest
Heaviest Horse Breed     Clydesdale
Heaviest Dog Breed     Mastiff
Heaviest Snake     Anaconda  was weighed in at 27 feet, 9 inches long and a big 500 pounds
Heaviest Reptile      Marine Leather Back Turtle weighing at 700kmg. (0.8 metric tons)
Heaviest Turkey     The largest domesticated turkey weighed 81 Lbs.
Heaviest Bear     Polar Bear at 2200 something pounds
Heaviest Cat (on record)     46 Lbs.
Heaviest Mollusc (and heaviest invertebrate)     The giant squid (Architeuthis sp.)
The largest giant squid ever recorded (Architeuthis princeps) was captured in 1878. One of the tentacle measured 35 feet long. It is estimated that the animal weighed in the neighborhood of 4000 pounds.
Heaviest Fish (bony fish)     Ocean Sunfish. Killed in 1908. 10 feet in length, 14 feet between dorsal and anal fins, 4,928 pounds. Struck by a boat.
Heaviest Bug     Goliath Beetle. About 4.5 inches and 3.5 oz.
Heaviest Bird Of Prey     Andean Condor at about 20-27 lbs.
Heaviest Crustacean     American or North Atlantic Lobster at 44 lbs 6 oz.
Heaviest Living Organism (world)     Pando aka The Trembling Giant in Utah, an Aspen tree. Est at 6,000 tons
     
Just Plain ODD
Best Sense Of Humor     Shark
1st Poultry Domesticated     Jungle Fowl. About 3200 BC
Hardest Shell (nuts)     Macadamia Nuts
Fussiest Eater     Koala eats only 6 of the 500 species of eucalyptus leaves.
Pigeon Fact     A Pigeon's feathers weigh more that it's bones. Thank you  Marvin Vargas
Oyster Gender     Oysters can change gender back and forth.  Thank you  Marvin Vargas
Snail Breaths     A snail breathes from its foot.  Thank you  Marvin Vargas
     
Meanest
Meanest Animal (world)     Honey Badger of South Africa
Meanest Freshwater Fish     Piranha, black are the meanest.
     

Oldest
Oldest Pinniped (wild)     Ringed Seal at 43 years old.
Oldest Pinniped (captive)     Grey Seal. 41-42 years in Sweden 1901-1942
Oldest Horse recorded     62 years old named "Old Billy"
Oldest Living Wild Bird     Britain's Royal Albatross, 62 and still going.
Oldest Living Snake     Common Boa. Lived 40 years, 3 months,14 days names Popeye.
Rarest Cat Breed (wild)     Malabar Large Spotted Civet only about 250 in Asia
Rarest Bird (world)     Ivory-Billed woodpecker and Jerdon's Courser
Rarest Sea Turtle     Kemp's Ridleys
Oldest Fish Species     Chimaera. These fishes evolved 400 million years ago during the Devonian Period
Oldest Pinniped     Ringed Seal at 43 years old.
Oldest Living Tree (NEW)     Pine Tree in California named Methuselah.Over 4700 years old. Kept secret for it's protection.
Oldest Tree     Giant Sequoia in California's Sequoia National Park, 2000 to 2100 years old. Measures 275 feet tall and 30 feet across.
Oldest Dog Breed     Saluki. of Egypt dating back to 7000 - 6000 BC
Oldest Cat (on record)     Tabby Cat. 34 years old.
Oldest Fish     The Common Eel at 88 years.
Oldest Chelonian     Madagascar radiated Tortoise lived to at least 188 years.
Oldest Living Organism (world)     Pando aka The Trembling Giant in Utah, an Aspen tree. Est. 80,000 years old.
     
The Most
Most Ferocious Creature (water)      Piranha.
Most Venomous Animal     Sea Wasp
Most Dangerous Spider     Sydney Funnel Web Spider
Most Venomous Spider     Brazilian Wandering Spider (Phoneutria nigriventer) only 0.006mg will kill a mouse.
Most Complicated song     Male Humpback Whale; Each  song can last over 30 minutes
Most Snake Venom 1 bite      110 mg. Enough to kill 100 over people. Inland Taipan
Most Shocking Animal      Electrical eel can release 650 volts. 
Most Legs     Millipede has 750
Most Feathers     Whistling Swan  has about 25,216
Best Hearing Animal     Bat.
Most Plentiful Ocean Creature (bottom)     Sea Pigs.
Most Taking Bird     African Gray Parrot. Can learn over 800 words.
Most Dangerous (water)     Sea Wasp or  Marine Stinger. 10 tentacles means death.
Most Dangerous Animal     Human with Hippo being second
Most Dangerous Anything     Common Housefly
Most Dangerous Animal in Canada     Moose
Most Dangerous Snakes (USA)     Rattlesnakes - Eastern and Western Diamondbacks
Most Dangerous Snakes (Africa)     Egyptian Cobras, Saw-Scaled Vipers, and Puff Adders
Most Dangerous Snakes (Asia)     Cobra and the Russell's Viper
Most Deadly Snake     Inland Taipan
Most Venomous Snake (World)     Fierce Snake (Oxyuranus microlepidotus)
Most human deaths (snake)     Saw-Scaled or Carpet Viper
Most Deadly Spiders (USA)     Brown Recluse and Black Widow
Most Poison Frog     Poison Arrow Frog. 2 micrograms of toxin will kill a human.
Most Poisonous Animal     Golden Poison Frog
Most Venomous Animal     Box Jellyfish. 
Most Destructive (Insect)     Desert Locust
Most Greediest animal     Larva of the Polyphemus.
Most Plentiful Ocean Creature (bottom)     Sea Pigs.
Most Massive Tree     “General Sherman,” the Giant Sequoia at 275 ft tall and weighs 2000 tons.
Most Poisonous Fish     Puffer Fish of the Red Sea and Indo-Pacific region. 0.1 gm can kill you.
Most Dangerous Parasite     Malarial parasites of the genus Plasmodium, which are carried by Anopheles mosquitoes, have probably been responsible for half of all human deaths.
     
Strongest
Strongest Bird     Bald Eagle. Can carry as much as 15 lbs in flight.
Strongest Web     Spider Silk is stronger than any known fiber equal to it's size
Strongest Animal     Rhinoceros Beetles. (Weight moved in relation to body weight.)
Strongest Land Animal (measured in absolute strength)     is the elephant- which can lift more than a ton and drag a load of more than 20,000 pounds.” Compliments of Mindy Arbo.
     
The Deepest
Deepest Sea Cucumber     Unidentified specimen taken from the Philippine trench in 1951 at 33,431 ft
Deepest Diving Bird     Emperor Penguin  can dive 1772 ft underwater.
Deepest Fish     Abyssobrotula Galatheae found in Puerto Rican Trench at over 5 miles down.
Deepest Sea Star     Eremicaster tenebrarius Collected in 7,630 meters (25,032 feet)
Deepest Place in Ocean     Challenger Deep, Marianas Trench. 35,838 feet down (that's over 7 miles)
Deepest Dive (Turtle)     Leatherback
Deepest Root      wild Fig Tree at Echo Caves, South Africa at 393.7 feet deep.
Deepest Cave (World)     "Lamprechtsofen-Vogelshacht" at 5,354 feet deep   Salzburg, Austria
Deepest Cave (US)     Lechuguilla Cave, New Mexico at 1,632 feet and still going.
     
The Loudest
Loudest insect      African Cicada at 107 decibels it is almost as loud as a road drill
Loudest Animal     Blue Whale
Loudest Land Animal     Howler Monkey
     
The Best
Best sense of smell (fish)     Shark. Detect as little as 1 part blood in 100 million parts of waters.
Best Swimming (bird)     Penguins
Best Sense of Hearing (bird)     Barn Owl
Best Sense of Smell (bird)     Kiwis
     
     
The Rarest
Rarest Canine     Ethiopian Wolf
Rarest Amphibian      Painted Frog, Lives in Israel 
Rarest Dog Breed     HOUNDS OF CRETE called the Cretan Hounds
Rarest Animal (sea)     Baiji Dolphin. Only a few left.
Rarest Animal (Land)     Amur Tiger. Only 60-70 Amur tigers left.
Rarest Bird of Prey     Californian Condors. Only 61 remain in the wild. Now NONE LEFT IN WILD
Rarest Sheep (learn more)     Dwarf Blue Sheep. Weighs 55-97  Lbs. China fewer than 200 left
Rarest Bat  (learn more)     Seychelles Sheath-Tailed Bat. Weighs .04 oz. Fewer than 50 left.
Rarest Rhinoceros (learn more)     Javan Rhinoceros. Weighs 3200 - 4400 lb. Fewer than 60 left.
Rarest Ape     Mountain Gorilla.
Rarest Penguin     Jackass Penguin
Rarest Buffalo  (learn more)     Tamaraw. Weighs about 660 lbs. Between 30-200 left.
Rarest Rodent (learn more)     Vancouver Island Marmot. Weighs 6.6 - 14.3 lb. Fewer than 100 left.
Rarest Wolf (learn more)     Ethiopian Wolf. Weighs 30-42 lbs. Less that 447 left in 2003.
Rarest Rabbit  (learn more)     Hispid Hare. Only 110 left in 2001.
Rarest 2 nd Rabbit (learn more)     Riverine Rabbit. Weighs 4.2 lbs. Fewer than 1000 in 1996.
Rarest Fox     Imperiled Foxes. Santa Cruz Islands.
Rarest Bird     Crested Ibis. Japan. Only 60 left
Rarest Bear     Spectacled Bear. Again, a victim of South American rainforest deforestation.
America's most endangered mammal     Black-Footed Ferret
Rarest Crane     Red-crowned Crane. Only 8 left. China
Rarest Alligator     Chinese Alligator
Rarest Lizard     Komodo Dragon. 3,000 left and dropping.
Rarest Monkey      Golden Lion Tamarin. Only 150 left. Couth American Rainforest victim.
Rarest Seal     Hooded Seal. Almost gone from hunting.
     

See what's Endangered in Your State http://www.endangeredspecie.com/map.htm
The Shortest
Shortest Life (Insect)     Mayflies. Live as little as one hour.
     
The Slowest
Slowest Fish     Sea Horse at .01 MPH
Slowest Bird Maturity     Royal and Wandering Albatrosses take about 6-10 years to mature.
Slowest Flying Bird     American Woodcock does about 5 MPH
Slowest Growing Tree     White Cedar in Canada
     
     
The Highest
Highest Flying Bird     Ruppell's Griffon Vulture at about 7 miles up
Highest Frequency Hearing (mammal)     Bats.  120-250 kHz
     

Biggest
     
     
Fattest
Fattest Animal (% body fat)     Blue Whale Baleanoptera Musculus.
Fattest on record (created)     OB mouse developed in a lab to study obesity. 70% body fat.
Fattest record (non-created)     A human. Jon in the USA had 80%