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Pigs observed using tools for the first time

Pigs observed using tools for the first time
By Bob Yirka
 
A team of researchers affiliated with several institutions in France has found evidence of pigs using tools—a first. In their paper published in the journal Mammalian Biology, the group describes multiple instances of Visayan warty pigs using sticks and bark to assist with nest building.
 
There was a time when scientists believed humans were the only animals that used tools—a skill that set us apart from the other creatures of the Earth. But such assumptions have long been laid to rest as multiple research efforts have shown that many animal species use tools in their own unique ways. Crows have been observed using sticks to hook prey, for example; otters use stones to crack open shellfish; elephants have been observed moving rocks and logs to cover watering holes. Tool use has long been a sign of intelligence, which has led researchers to wonder why no one had ever seen pigs using tools of any kind. They are, after all, considered to be among the smartest animals. As it turns out, at least one kind of pig does use a tool—the researchers observed several of them at a Parisian zoo using sticks and lengths of bark to dig out a nest.
 
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