sharks have evolved many different guises over the hundreds of millions of years that they have been swimming the oceans. The earliest fossil evidence for sharks or their ancestors are a few scales ...

“By contrast, the much earlier rise of shark-like fishes within jawed vertebrates is poorly documented.” For the past several years, Maisey and colleagues have investigated a Doliodus problematicus ...

That’s one thing we’ve discovered at Fakarava: The sharks hunt in packs, a bit like wolves, but less cooperatively. A single shark is too clumsy to catch even a somnolent grouper. A pack of ...