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Discovery in a cave of a tiny shark with "nails" for teethIts posterior teeth, flat and elongated ... This small shark belonged to the obruchevodid group, cartilaginous fish specialized for reef life. These animals were among the most specialized ...
Since the 1980s, Caribbean reef shark populations have dropped 52 percent. In some places, their numbers have plummeted by as much as 99 percent, and since 2021 the sharks have been classified as ...
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