The coelacanth isn't called a "living fossil" for nothing. The 2-meter-long, 90 kg fish was thought to have gone extinct 70 million years ago—until a fisherman caught one in 1938—and the animal looks a lot like its fossil ancestors dating back 300 million years. Now, the first analysis of the coelacanth's genome reveals why the fish may have changed so little over the ages. It also may help explain how fish like it moved onto land long ago.
The coelacanth isn't called a living fossil for nothing. The 2-meter-long, 90 kg fish was thought to have gone extinct 70 million years ago—until a fisherman caught one in 1938—and the animal looks a lot like its fossil ancestors dating back 300 million years. Now, the first analysis of the coelacanth's genome reveals why the fish may have changed so little over the ages. It also may help explain how fish like it moved onto land long ago.
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