Maybe it won’t be the cockroaches that take over when the human race is gone, but those very smart crows.
A tool-using strategy that was key to the advancement of early humans has been observed by scientists in a bird. “Metatool use”, the ability to use one tool on another, is something that humans and great apes such as chimps and orang-utans are capable of, but with which monkeys struggle. However, a study has shown that New Caledonian crows can manage this task easily.
Horror movie anyone?
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