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Rough Scaled Bush Viper - Adaptations

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Kelly Schlagel

on 19 May 2014

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Transcript of Rough Scaled Bush Viper - Adaptations

Rough Scaled Bush Viper - Adaptations
Works Cited
2008, Boston, Massachusetts, Kenneth R. Miller, Joseph S. Levine (Pearson) Prentice Hall Biology



Background Info
Habitat
: Rainforest
Current Adaptations
Thick, green or yellow scales that come to a point
Evolutionary
History

Food
: Birds, shrews, rodents, small reptiles (even of their own species.)
Scientific Name
: Atheris Squamagera
Interaction
: Nocturnal, ambush predator
Coiling and ambushing capabilities (ability to remain still for long periods of time and extreme speed upon releasing the coiled position)
Individual scale movement to scare off predators
My Adaptations

Extremely poisonous (lethal) venom
Development of My Adaptations
As the natural habitat in which the vipers lived in got smaller and smaller, and their prey became harder to find, the vipers with unique scale flexing and manipulating abilities can hunt and survive, whereas the others cannot.

Reptiles were first vertebrates to develop reproductive system that did not include depositing eggs in water (To colonize dry habitats)
Oldest Reptilian fossil 350 million years ago (Carboniferous Period)
Certain similar lizards are evolved from the same ancestor as them.
Scale pattern and body shape changes during the course of evolution were caused by the vast spread of the original species.
Fossil evidence for snakes and vipers is hard to come by as they have such delicate skeletons. Their evolution seems extremely gradual and that the snakes of today are very similar to their older ancestors.

http://www.reptile-database.org/db-info/snakes.html
http://animaldiversity.ummz.umich.edu/accounts/Atheris_squamigera/#development
http://media-cache-ak0.pinimg.com/736x/49/3b/e4/493be41829aed4888c97885bfe9f0f08
http://bioweb.uwlax.edu/bio203/s2008/gietman_jaco/phylogeny
http://upload.wikimedia.org/wikipedia/commons/5/5a/Atheris_hispida
http://i10.photobucket.com/albums/a147/BadAssHerps/Not%20my%20herps/rough_scaled_tree_viper
Explained
As we put stress on the vipers' rainforest habitat, it gets harder for them to survive due to lack of prey. Those that have the best survival rate are those with the more pointed scales. Because of the flourishing of the more-pointed scales, mutations are more likely to occur within that allele. For example, there is a connective tissue holding the scales to the body of the viper. A mutation can occur causing the cells of that connective tissue to turn to muscle tissue. This muscle tissue will bind into the muscles and nerves of the body an connect to the CNS. Now, the brain can control
the scales in a manner similar to the cuttlefishes' texture
control. only, instead of texture control, it's individual
scale flare and retract control.
Full transcript