Signs of Ancient Overfishing in a Giant Clam

According to the BBC, a team of researchers discovered a new giant clam species in the Red Sea that may have been one of the first marine species over-exploited by humans. The team discovered fossil evidence to suggest the giant clam population plummeted at the same time humans appeared in the Red Sea area--125,000 years ago. Read the full story here.

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This video, captured by University of California Santa Cruz professor Giacomo Bernardi, shows an orange-dotted tuskfish (Choerodon anchorago) cracking open a clam by throwing it against a rock.
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Also, master of molluscan anatomy, and clever tool user.
Have you had a chance to see this video from Discovery News showing the flashy 'disco clam'? A graduate student at UC Berkeley, Lindsey Dougherty, unraveled the mystery of this party-like effect.

I wonder if someone will try to blame THIS on an asteroid...