Sharks have between 5 and 7 gill slits located on the side of their head. Sharks have long captured our fascination with their sleek bodies, sharp teeth, and predatory success. Yet, beneath this ...

Scalloped hammerhead sharks hold their breath to keep their bodies warm during deep dives into cold water where they hunt prey such as deep sea squids. This discovery, published today in Science by ...

Hammerhead sharks are intriguing creatures, and when they begin some of their deepest dives, they take a deep breath and close their gills. At least, that's what new research seems to suggest. The ...