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.

Off the Pacific coast of Canada, scientists have captured something that challenges long‑held assumptions about life in the sea: killer whales and dolphins moving in sync as they pursue the same prey.

A pod of Pacific white-sided dolphins off the coast of British Columbia have been observed cooperating with orcas, a traditional enemy that’s better known for taking out great white sharks than ...

This Northumberland coastal town has a bay that will 'take your breath away' and you might even spot dolphins in the sea ...