Whale Evolution

Photo Credit Hans Thewissen

The National Science Foundation has released news on a study that helps explain limb loss in whales.

“Hans Thewissen and his colleagues report that ancient whales–four-footed land animals not unlike large modern dogs–evolved into graceful, streamlined swimmers through a series of small genetic changes during the whales’ embryonic development.”

See Carl Zimmer at The Loom for a recent update on The Path Toward Leviathan and his earlier “whale chronicles“.


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