#Scientists capture first-ever footage of killer #whales making #seaweed #grooming 'tools'
#KillerWhales have been filmed making and then using what is thought to be the #cetacean equivalent of a pumice stone. Reported in Current Biology, this is the first time that a #marinemammal has been seen creating a grooming-related tool and then using it with another individual.
https://www.discoverwildlife.com/animal-facts/marine-animals/killer-whale-kelp-tool