One dolphin swam past, her nose oddly enlarged. On a closer look, the bulb was a marine sponge — wedged tightly onto her beak ...

Dolphins off the coast of Australia are swimming around with sponges on their noses. But unlike the orcas who wear salmon on ...

Hunting with a sponge on their face interferes with bottlenose dolphins' finely tuned sense of echolocation, of emitting sounds and listening for echoes to navigate. "It has a muffling effect in the ...

In 2021, researchers in Bolivia saw Amazon river dolphins playing with a Beni anaconda. The dolphins interacted gently with ...