Crows Shown to Build Complex Tools from Multiple Separate Parts, Something Only Great Apes and Humans Have Been Shown Doing

Crows continue to prove that they have amazing attributes unique among animals. Crows likely have more to teach humans that study them about cognitive processes, which would aid understanding of the human mind.

Well, we didn’t think it was possible, but we should have had more faith in our feathered corvid friends: crows just got even cooler. Researchers have discovered that crows don’t just use single objects as tools; they can also make them out of multiple parts that are individually useless.

Let that sink in for a moment.

We already knew that corvids – crows and ravens – are capable of reasoning cause and effect, solving multi-step puzzles, planning for the future and even fashioning simple tools out of sticks and paper.

But making compound tools is something that has only ever been observed before in primates – specifically, humans and and great apes.

Even young humans take several years to be able to learn this skill, because cognitively speaking, it’s actually quite complex. It requires the ability to anticipate the properties of objects, and to be able to mentally map the consequences of putting them together prior to doing so.

As such, it’s considered a pretty important milestone when it comes to brain evolution. So observing it in birds is pretty spectacular.

“The finding is remarkable because the crows received no assistance or training in making these combinations, they figured it out by themselves,” said ornithologist Auguste von Bayern of the Max Planck Institute for Ornithology and the University of Oxford.

The team conducted their research on eight New Caledonian crows (Corvus moneduloides), a bird well known for its intelligence.

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