Question 2 of 21

How long have snakes been roaming the Earth?

... Snakes have greatly evolved since they first appeared nearly 130 million years ago.

Question 3 of 21

What characteristics do all snakes share?

... There are close to 3,000 species of snakes. All snakes, however, share similar characteristics, including being meat-eaters and cold-blooded.

Question 4 of 21

How do snakes hear?

... Sounds waves hit a snake's skin, which is then transferred to a snake's bone and is interpreted by the inner ear. Snakes actually don't have outer ears like humans.

Question 5 of 21

Snakes do not see:

... Snakes are colorblind, but they do have light receptors to interpret different shades of light.

Question 6 of 21

What unique vision ability do boas and pythons possess?

... Boas and pythons have a special organ on top of their head that allows them to see heat sources.

Question 7 of 21

How does a snake smell?

... Snakes smell like humans through their nostrils. A snake can also smell by gathering odor particles on its tongue.

Question 8 of 21

Where are Jacobson's organs located in snakes?

... Jacobson's organs are fluid sacs located on the roof of a snacks mouth. These organs are involved in the olfactory process.

Question 9 of 21

Snakes have very similar internal organs compared to humans. Snakes, however; lack:

... Snakes don't have a diaphragm. Instead, snakes circulate air by narrowing and widening their ribcage.

Question 10 of 21

Snakes have different shaped lungs than humans. Snakes have:

... Snakes have an elongated right lung, and some even have a third lung, to help with processing oxygen.

Question 11 of 21

Two-headed snakes:

... Two-headed snakes do exist. They are similar to conjoined twins. They rarely survive in the wild, however, because of difficulties with catching prey.

Question 12 of 21

What substance covers a snake's skin?

... Keratin, the substance found in human fingernails, covers a snake's skin.

Question 13 of 21

How does a snake lose its skin?

... The new skin cells separate from the old skin, making the old skin lose. The snake then scrapes itself against a rock and the old skin begins to peel off.

Question 14 of 21

How long does it take for a snake to shed its skin?

... The skin shedding process, also known as molting, takes approximately 14 days.

Question 15 of 21

Ventral scales help a snake:

... The ventral scales function like tire treads. They are located on the bottom side of a snake and help a snake move along.

Question 16 of 21

What shape does a snake make while doing the serpentine movement?

... Most snakes move in serpentine movement, which is in an s-shaped pattern. Serpentine movement is also known as undulatory locomotion.

Question 17 of 21

Which type of snake movement is very slow?

... The caterpillar movement, also known as rectilinear locomotion, involves the snake making small curves up and down, rather than side to side.

Question 18 of 21

Flying snakes live in:

... Flying snakes, also known as tree-dwelling snakes, live in Sri Lanka and Southeast Asia. They swing from branch to branch, gliding in the air for long distances.

Question 19 of 21

Where does the anaconda primarily live?

... The anaconda is the heaviest species of snakes. Anacondas primarily live in water and are very similar to alligators.

Question 20 of 21

How do snakes eat their prey whole?

... Amazingly, snakes can eat large prey entirely whole. Snakes can dislocate their lower jaw, due to a double jointed hinge. Moreover, unlike humans, a snake's upper jaw is fused to its skull.

Question 21 of 21

What is the primary use of a snake's venom?

... A snake generally has difficulty eating its prey alive. For this reason, some snakes inject venom into their prey before eating.