A nurse shark has been spotted off the coast of Costa Rica with a highly unusual feature: its entire body was a vivid yellow-orange. The discovery marks the first recorded case of xanthochromism—a ...

The hammerhead’s head is not evolution having a weird day. Its wide-set eyes can give some species a visual field of up to 340 degrees, while the head also helps the shark detect faint electrical ...

Based on its whimsical name, it’s easy to assume that the cookiecutter shark is cute and gentle. However, nothing could be further from the truth. In fact, the name “cookiecutter” doesn’t refer to the ...

Ghost sharks have evolved rows of true teeth on a bizarre forehead rod used for mating. Fossil and genetic evidence revealed the tenaculum’s teeth develop the same way as those inside the mouth, ...

(1) The basking shark head, (2) Their distinctive skin consisting of 'paver block' arrangement, (3) Renderings comparing the skin denticle shape/arrangement with another close shark species (not on ...

Epaulette sharks are famous for using their fins like limbs to help them crawl around the seabed. Now, a new study reveals ...