Discover interesting facts about how dolphins sleep, if they're dangerous, and what they eat.

Picture a dolphin diving toward the seafloor with something odd on its nose. It is not a shell or a fish. It is a sea sponge. The dolphin isn’t playing; it’s using the sponge as a diving mask: a clear ...

BOTTLE NOSE DOLPHIN SWIMMING FAST AND PLAY WITH SPONGE© Yann hubert/Shutterstock.com In Shark Bay, Western Australia, some Indo-Pacific bottlenose dolphins use sponges as tools while they hunt.