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Snakes

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by

Rita Li

on 25 June 2014

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Transcript of Snakes

Snakes
Rita 6CL
What is a snake?

A snake is a long limbless reptile which has no eyelids, a short tail and a jaw that are capable of considerable extension. Some snakes are venomous.
Snakes are from the class of the reptiles. There closest living relatives are lizards; have said that snakes are possibly evolved from them. They are also refereed as worm-lizards
Definition
A treacherous or deceitful person
Suit of Armor
The bodies of snakes are covered with scales. Without this protective armor, snakes could not move over rough or hot surfaces; like tree bark, rocks, and hot desert sand. Their scales are also nearly waterproof and help to keep the water out. of its skin Rough belly scales allow the snake to keep their grip on rough branches and to push off of surfaces when they need to move.
Snakes have powerful muscles all along the front half of their bodies. Snakes use these muscles for moving as well as swallowing. The muscles move the food down along the throat and into the snake’s long stomach. Moving the food through the throat into the stomach can take 15 minutes to an hour, depending on the size of the animal they are eating.
In egg-eating snakes the sharp rib bones will poke through the eggshell to help speed along digestion. Food in the snake’s stomach can take anywhere from a few days to a couple of months to breakup or digest. That is a long time to work on a meal!
Have you ever
wondered how a snake can swallow such big meals without chewing?
Predators
It is hard to believe but snakes have many enemies. Large birds, wild boars, mongooses, raccoons, foxes, coyotes and us. Many people find it surprising that the largest and the scariest snakes can be afraid of anything, but it is true. While they are young they are easy prey to many birds and mammals but when they are older and larger they have humans to fear.

Humans hunt snakes for various reasons. Many different breeds of snakes are captured and shipped to other countries to be sold in pet shops. Venomous snakes are used for making anti-venom, which is made from their venom and is used to save the life of a snakebite victim. Snakeskin is used for making many things including shoes, purses and belts.One of the biggest threats to the snake population, the same as with many other animals, is the destruction of their habitats by humans. Their homes are being destroyed to make room for ranches, farms, hotels and highways.
Did you know?
Snakes have poor eyesight, but they have heat sensors, that pick up vibrations.
That most deadly snakes are found in Australia.
•Once the skin is shed the snakes' skin doesn't actually have a colour.
70% of snakes hatch from eggs.
•Snakes can expand the capacity of their jaws due to an elastic jaw ligament
Full transcript