Russell has a PhD in the history of medicine, violence, and colonialism. His research has explored topics including ethics, science governance, and medical involvement in violent contexts. Russell has ...

Wild dolphins were captured on film putting sea sponges over their snouts, using them as tools to hunt along the seafloor.

Add Yahoo as a preferred source to see more of our stories on Google. In this photo provided by the Shark Bay Dolphin Research Project, a bottlenose dolphin wearing a marine sponge on its nose to ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. WASHINGTON (AP) — Some dolphins in Australia ...