“Trash pandas” are infamous for living among us, but why are they so good at it?
, Lauren Stanton, then a Ph.D. student in Benson-Amram’s lab, presented captive raccoons with the Aesop’s Fable test, a classic measure of intelligence. In the experiment, an animal must drop stones into a water-filled cylinder to raise the fluid level and make floating treats—in this case, marshmallows—rise to the surface.entirely and came up with her own solution
Benson-Amram says it’s too early to say whether raccoons are evolving through natural selection because of city life It’s also not always true, however, that urban raccoons are cleverer than their country counterparts. In urban and rural areas around Raleigh, North Carolina,One test involves suspending cups filled with pet food from a tree using a string. Some of the cups are easy for raccoons to pull up from a branch, while others have smoother strings and are harder to grab. Using camera-trap video, Morton observes how raccoons deal with the challenge.
Even more surprising is that so far, urban and rural raccoons have shown no difference in the experiment.Living with “trash pandas”
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