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Xue Xia

on 17 October 2014

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Transcript of Snakes

Introduction of Snakes
3,100 species

Exist in Asia, Europe, Africa, South America, North America, Oceania

Two classes of snakes---
Alethinophidia & Scolecophidia
Perception & Internal Organs
Scales & Skin
Cold-blooded animals, covered by scales

Can not chew

Have flexible jaws
Trivia about Snakes
Snake blood & Snake Wine
Locomotion & Reproduction
Oviparous & ovoviviparous
Snake Bite
Venomous Snakes
Inland Taipan
Diet of Snakes
Moulting: 3-4 times every year
Poor eyesight
Sensitive to vibrations
Forked tongue
Organs are not symmetry
Heart can move
Use scales and tail to move
Easter Brown Snake
Tiger Snake
• Venom is modified saliva of snakes and delivered through fangs

• Neurotoxins: tetany

• Hemotoxins: PAIN! & hemolysis

• Cytotoxins: specifically toxic to the heart
From Australia Venom Research Unit
Snakes as Food & Pet
Resistance to the venom
Less than 2% of snakes are considered harmful to humans.
Deep Fried Snakes
Steam Snake
Smallest Snake & Largest Snakes
Anaconda can live without eating for..?
How much is one gram of snakes' venom?
Pythons & King Snakes are popular
Many Asian countries has the habit of eat snakes
Produce by Shane
Full transcript