Goblin sharks can be quite intimidating to look at, but their strange jaws are their biggest asset. Read here to learn more.

Sharks might not be a natural biological group, with most species potentially closer kin to rays than to an oddball group of sharks.

Deep sea holds alien-like species. The frilled shark, a living fossil, remains a mystery. Its unique anatomy includes six frilled gill slits and a trident-like mouth. This predator hunts with stealth, ...