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.

A rare sighting of two deep-ocean dolphin species off the coast of Port Macquarie has left both marine experts and wildlife photographers buzzing. On a recent birdwatching tour, two dolphins were ...

Also known as skunk dolphins or Commerson's dolphins, these mammals weigh up to 190 pounds and often approach boats.