Date:
June 10, 2014
Source:
University of Michigan
Summary:
On opposite sides of the globe over millions of years, the snakes of North America and Australia independently evolved similar body types that helped them move and capture prey more efficiently. Snakes on both continents include stout-bodied, highly camouflaged ambush predators, such as rattlesnakes in North America and death adders in Australia. There are slender, fast-moving foragers on both continents, as well as small burrowing snakes. This independent evolution of similar body forms in response to analogous ecological conditions is a striking example of a phenomenon called convergence.
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