The lifespan of this reptile is around 150 years, making it the longest living animal on the planet.

This body part of a rodent never stops growing.

this animal can flap its wings about 80 times per second, causing an audible humming sound. Due to the unique structure of their wings, they can fly left, right, up, down, backwards, or even upside down.

Unlike other turtles, these turtles cannot retract into their shells.

these bugs can lift and carry more than fifty times their own weight.

Reptiles can be found on every continent except this one.

This animal is the only mammal known to have true flight.

Able to dive at almost 200 miles per hour, this animal is not only the fastest flying bird in the world, but the fastest animal on earth.

Unlike bony fish, these fish do not have gas-filled swim bladders for buoyancy. Instead, they rely on a large liver filled with oil that accounts for 30% of their body mass.

According to the Guiness Book of World Records the most venomous spider in the world is this spider. Its venom is so potent that just 0.006 mg (0.00000021 oz) can kill a mouse, making it the most active neurotoxic venom of any known spider.

These reptiles become immobile when the temperature drops below 40 degrees. Since they often like to sit in trees, when the weather in places where they live, like South Florida, gets very cold they have been known to drop out of trees.

This animal must rely on its oversized heart (two feet long and twenty-five pounds!) to pump blood all the way to its head. As a result, it has the highest blood pressure of any animal: 280/180 mmHg (millimeters of mercury) at heart level when prone -- more than twice the blood pressure of an average human.

Parrots aren't the only birds that can mimic speech. This fairly common bird can too.

The gestation period of this animal is approximately 10 to 12 months. Usually, only one calf is born at a time, although twins have been reported on rare occasions. Most calves, which weigh about 2 1/2 tons, are born in late fall or winter and will usually stay with their mother for 6 to 8 months until they are weaned.

this insect was the first living creature to be sent into space

This is what you call a group of alligators.

This animal has two hundred million scent cells inside its nose and can smell 100 times better then a human being. Under favorable conditions, it can smell its prey from about 1.75 miles away.

These birds, believed to be the first domesticated birds, have been used for centuries to deliver messages, even the outcomes of the early Olympic games.

The Navy Marine Mammal Program at San Diego's Space and Naval Warfare Systems Command (SPAWAR) trains dozens of these animals to help the U.S. Navy.

this family of insects account for one quarter of all known species of plants and animals.

This lizard measures only an inch from nose to tail.

The smallest mammal in the world is this animal, which lives along the River Kwai in western Thailand. An endangered species, it is not much larger than an actual bumblebee (1.2 in) and weighs less than a penny (0.07 oz).

This bird has the largest eyes of any animal that lives on land.

The Navy Marine Mammal Program at San Diego's Space and Naval Warfare Systems Command (SPAWAR) trains dozens of these animals to help the U.S. Navy.

According to the Food and Agriculture Organization, there are this many species of edible bugs.