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 ...

A bizarre-looking shark species straight out of a horror movie has been discovered deep in the ocean. This new huge-eyed species is a type of "ghost shark," or chimaera, which are some of the oldest ...

The discovery proves it's possible for vertebrates to grow teeth outside the mouth Getty A new study discovered male ghost sharks grow teeth out of their foreheads on an appendage called a tenaculum ...

The pointy-nosed blue chimaera was named for Alaskan artist Ray Troll, who loved the species so much that his artwork immortalized it. However, Troll was not the only one curious about this strange ...

There’s a lot of diversity of form among fishes. What we generally think of as standard features (fins, scales and teeth) can present in all sorts of interesting ways from group to group and species ...