The frilled shark is one of the oldest and strangest predators still alive, surviving in deep ocean waters with a body plan that has barely changed for tens of millions of years . Its eel-like body, ...

Understanding how these animals manage to survive for centuries offers us a humbling look at our own place in the ecosystem.

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Normal, really, what is normal? I think usual or customary or some other word might work better in this instance, but I got ...