1. A chameleon's tongue can be as long as its body.
2. Great white sharks can detect a drop of blood in 25 gallons of water and can even sense tiny amounts of blood from three miles away.
3. The blue whale's tongue weighs as much as an adult elephant.
4. Houseflies hum in the key of F.
5. Fleas can jump distances 100 times their body length.
6. A beaver's teeth never stop growing. It needs to chew on tree trunks and branches to keep them from getting too long.
7. Oysters can change gender multiple times during their life.
8. The water boatman can make a 105-decibel noise by rubbing its penis against its belly.
9. The howler monkey is the loudest land animal. Its call can be heard from three miles away.
10. Blue whales are the loudest mammals, producing low-frequency "pulses" that can be heard from more than 500 miles away.
11. The snapping shrimp is the loudest known living creature. It has specialized claws that shoot jets of water at up to 62 miles per hour and leaving a trail of bubbles that explode at 200 decibels — enough to stun and even kill its prey.
12. A cheetah can go from zero to 60 miles per hour in three seconds.
13. Male emperor penguins will stand without eating for up to two months in the Antarctic elements while the female goes to feed.
14. During those two months, the mother will travel up to 50 miles each way to hunt, and will return to their newly-hatched chick with a belly full of food to regurgitate.
15. Seahorses are monogamous and mate for life.
16. Seahorses are also the only animal on earth where the male bears the unborn young.
17. Polar bears have black skin under their white fur to better absorb the rays of the sun.
18. The name "jaguar" comes from a Native American word meaning "he who kills with one leap."
19. Hippos secrete a red oily substance from their skin that acts as sunblock and a moisturizer.
20. All clownfish are born male, and will only change sex to become a dominant female.
21. The venomous Portuguese-man-of-war is actually an animal made up of four separate organisms, known as a siphonophore.
22. The 2-inch-long golden poison dart frog has enough venom to kill 10 adult men.
23. The electric eel can deliver jolts of electricity up to 600 volts, enough to knock a fully grown horse off its feet.
24. Grizzly bears have been clocked running at up to 30 miles per hour.
25. The longest-living Galapagos tortoise lived to be 152.
26. Galapagos tortoises sleep for 16 hours a day and can go a year without food or water.
27. Peregrine falcons dive-bomb their prey and can reach dive speeds of up to 200 miles per hour.
28. A desert locust swarm can be 460 square miles in size and can consume 423 million pounds of plants in a single day.
29. The tiger shark is nicknamed "the wastebasket of the sea" and refuse like old license plates and tires has been found in its stomach.
30. The flying snake can glide in the air for distances up to 330 feet and can even make turns in the air.
31. This is what scorpions look like under ultraviolet light:
32. Scorpions are also incredibly resilient, and are able to live on a single insect per year. Scientists have frozen scorpions overnight, and when thawed, the arthropod walked away unscathed.
33. African elephants have the longest pregnancy of any mammal — nearly two years long.
34. An adult panda typically spends 12 hours a day eating and must consume 28 pounds of bamboo daily to fulfill its dietary needs.
35. The largest giant squid on record was 59 feet long, and the creature's eyes are as big as beach balls.
36. Almost all pufferfish contain a toxin called tetrodoxin, which is up to 1,200 times more lethal to humans than cyanide. Despite this, some pufferfish meat — called fugu — is a delicacy in Japan, where it must be prepared by a licensed chef.
37. Anteaters eat 35,000 ants a day.
38. Snow leopards can leap up to 50 feet in one jump.
39. The golden eagle can dive at speeds of up to 150 miles per hour and has been known to attack fully grown deer.
40. Vampire bats feed entirely on blood, and a 100-bat colony drinks the blood of 25 cows every year.
41. The saliva of a Komodo dragon harvests more than 50 types of bacteria. Animals bitten by the lizard typically die within 24 hours from blood poisoning — if they aren't eaten first.
42. Baby giraffes can stand within half an hour of birth.
43. Once a giant clam picks a spot to live on a reef, it does not move for the rest of its life.
44. The three-toed sloth sleeps up to 20 hours a day and is so sedentary algae grows on its back.
45. A wolf can eat up to 20 pounds of meat in one sitting.
46. Goats and sheep have rectangular pupils which allow them to see nearly 360 degrees around themselves.
47. Ostriches can cover 16 feet in a single stride, and are capable of reaching speeds of 43 miles per hour.
48. The kick of an ostrich is used as a weapon and is capable of killing a lion — and yes, humans too.
49. Flying fish reach speeds of 37 miles per hour to breach the water and glide up to 655 feet — more than the length of two football fields!
50. The spring peeper lets most of its body freeze during winter hibernation and still thaw out and survive.
51. Technically, only males are peacocks — females are peahens, and choose their mate based on the size, quality, and color of the male's feather trains.
52. When tarantulas molt, they can replace internal organs including stomach lining, female genitalia, and even lost limbs.
53. Tarantulas secrete digestive enzymes so they can liquefy their pray and drink up their remains. Yum!
54. Male tarantulas also get the hell away from females after mating, because the lady tarantula often will eat the dude!
55. Elephants can smell water from several miles away.
56. At lengths of 40 feet long — the size of a school bus — the whale shark is the largest fish in the sea, but feeds on tiny microscopic plankton.
57. Sea cucumbers will spit out some of their internal organs via their anus as a defense mechanism.
58. The king cobra has enough venom to kill an elephant.
59. The king cobra is also the largest venomous snake at up to 18 feet long, and can rear itself up to six feet off the ground — enough to tower over many humans.
60. The narwhal has two teeth, one of which can grow into a nearly-nine-foot-long tusk in males.
61. Dominant male elephant seals collect a harem of 40 to 50 females during breeding season.
62. Also, southern elephant seals can reach depths of nearly a mile into the ocean and are able to hold their breath for two hours.
63. Chameleons don't change colors to match their surroundings, but to show emotions and specific reactions.
64. No two tigers have the exact same stripes.
65.The three-foot-long tusks of a walrus, which grow throughout their lives, are actually canine teeth.
66. The coelacanth, a bizarre-looking fish, was thought to have gone extinct with the dinosaurs 65 million years ago, only to be rediscovered in 1938.
67. A snowy owl may eat up to 1,600 lemmings a year — three to five every day.
68. When anacondas mate, several competing males can form a ball around a female in a ritual that can last up to a month.
69. When a queen bee dies, worker bees create a new queen by feeding a female bee "royal jelly" that makes her fertile.
70. Queen bees also regulate the activity of a hive by releasing a chemical into the air that guides other bees' behavior.
71. Ancient Greek dentists used the venom from stingrays as an anesthetic.
72. Arabian camels rarely sweat, but are capable of drinking 30 gallons of water in less than 15 minutes.
73. The largest bald eagle nest on record was 20 feet high and weighed two tons.
74. The sperm whale eats about a ton of fish and squid every day.
75. Sailfish are the fastest fish in the ocean and can leap out of the water at speeds of up to 68 miles per hour.
76. Alligators have been around for 150 million years.
77. A hungry tiger can eat as much as 60 pounds of meat in one meal.
78. Ruby-throated hummingbirds beat their wings at a rate of 53 times per second, and can fly backwards and upside down in addition to hovering.
79. Koalas are actually not bears — they're marsupials — and they sleep for 18 hours a day.