Some bottlenose dolphins use sponges to hunt fish

Some bottlenose dolphins (Tursiops aduncus) use a sponge to flush camouflaged fish out from the seafloor. The sponge protects their nose while the animals probe the sand for hidden meals, but there’s a catch: it interferes with the echolocation the dolphins use to navigate. The trade-off might explain why the skill is so rare — researchers found that sponge hunting is unique to a small pod of dolphins in Western Australia.

https://apnews.com/video/why-dolphins-use-sponges-to-catch-fish-233df1f6bb69467993f2cb34ba756c31