Blind as a bat. See like a hawk. Eagle-eyed…Eyes like a shark? As humans, we’ve long been fascinated by the capabilities, or lack thereof, of creatures throughout the animal kingdom. While some ...

New research shows how the Greenland shark’s heart keeps working for centuries by tolerating aging rather than avoiding it.

1. Introducing sharks, skates, rays, and chimaeras -- What are sharks and how are they classified -- How many kinds of sharks are there -- How did sharks get their name -- Where do shards live -- When ...

The very, very long-lived Greenland sharks were long thought to be practically blind. But a new study finds that they not ...