Some fish always appear ready for their close-ups. Others, like this teetering triggerfish, look like you’ve just snapped a Polaroid of them in the middle of wild weekend in Las Vegas.
The loss of animal species is irreversible and potentially catastrophic, not to mention heartrendingly sad. Where do we stand? Face the facts with this quiz.
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The Innovators Project
Meet some of science's most important movers and shakers—from past and present.