Researchers observed a family of critically endangered Visayan warty pigs using sticks to dig and build nests, evidence that the digitless swine are capable of using tools, according to a study in the journal Mammalian BiologyPigs aren't known for nest-building, and they certainly aren't known for their sophisticated use of tools. In the 2017 trial, Priscilla dominated once again, using a stick to dig a whopping seven times. Visayan warty pigs live in family units and, much like human children, study each other to learn what goes right, according to the study. Pigs had never been studied using tools beforeFew species have been spotted using tools to their benefit, Root-Bernstein told CNN. "Just using tools at all is very significant!"

Source: CNN October 06, 2019 15:33 UTC