Some dolphins wear a sea sponge on their nose like a glove to go hunting
In Shark Bay, Australia, certain bottlenose dolphins tear a cone-shaped marine sponge off the seabed and wear it over their beak while foraging, using it to cushion their snout as they root through sharp rubble for fish hiding underneath. The behaviour, called 'sponging,' passes down almost exclusively from mother to daughter, and genetic studies trace it to a single dolphin who apparently invented the trick. It's one of the clearest examples of tool use outside primates.