Wildlife Views: Evolution Of Marine Iquanas (Video)

Marine iguanas are the only modern lizards that hunt for food above and below water. Due to natural selection, they have adapted to survive in deep underwater meadows. With the ability to hold their breath for half an hour and sharpen their claws to grip slippery rocks, they are able to thrive in the chilly underwater temperatures that many cold-blooded reptiles could not survive.

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