Thursday, October 23, 2008

Shark Egg Blog

I came across this blog about shark eggs and how they adapt and change depending on their environments. Not just any sharks however, these eggs are from 2 different species of deep sea sharks. A few miles down from the surface of any ocean, water pressure is very high, and it is also very dark. Not only this, but hardly any sunlight reaches these areas either. Because of this, any animals that can survive down there must be highly adapted to do so. Deep sea sharks did exactly this by genetically enhancing their eggs to be able to survive in such conditions.

Shark Blog
(scroll down)

Cold and Water pressure were a huge factor in how these eggs progressively changed over the past. The darker egg in the blog is an egg that obviously has a dense shell to protect it from water pressure and to provide warmth for the baby shark. Also, it is obvious that the egg seems to resemble some type of plant, of course for camouflage purposes. The second egg also seems to have the same type of tough shell to protect it from the elements. What differs greatly between these two eggs is their shapes. The orange egg seems to have a corkscrew type shape. According to the article, this is to help wedge the egg in between rocks to keep them safe as they grow.

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