Male "ghost sharks"—eerie deep-sea fish known as chimaeras that are related to sharks and rays—have a strange rod jutting from their foreheads, studded with sharp, retractable teeth. New research ...

They’re more shark than bite. Sharks could soon experience a dental breakdown. These apex predators are at risk of losing their teeth due to the increased acid content in the world’s oceans, according ...

Even sharks’ famous tooth-regrowing ability may not save them from ocean acidification. Researchers found that future acidic waters cause shark teeth to corrode, crack, and weaken, threatening their ...

A great white shark is a masterwork of evolutionary engineering. These beautiful predators glide effortlessly through the water, each slow, deliberate sweep of the powerful tail driving a body ...

How will the climate crisis affect one of the ocean’s fiercest predators? New research published Wednesday has examined what might happen to sharks’ highly specialized, flesh-cutting teeth. As carbon ...

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 ...