Thanks to Nell Greenfieldboyce, science correspondent at National Public Radio (USA), for summarizing findings about how some animals help one another. We are on the lookout for more stories of how, why, when acts of kindness happen, and if we need to turn to parrots for inspiration, no problem:
Parrots can perform impressive feats of intelligence, and a new study suggests that some of these “feathered apes” may also practice acts of kindness.
African grey parrots voluntarily helped a partner get a food reward by giving the other bird a valuable metal token that could be exchanged for a walnut, according to a newly published report in the journal Current Biology.
“This was really surprising that they did this so spontaneously and so readily,” says Désirée Brucks, a biologist at ETH Zürich in Switzerland who is interested in the evolution of altruism.
Children as young as 1 seem highly motivated to help others, and scientists used to think this kind of prosocial behavior was uniquely human. More recent research has explored “helping” behavior in other species, everything from nonhuman primates to rats and bats.
To see whether intelligent birds might help out a feathered pal, Brucks and Auguste von Bayern of the Max Planck Institute for Ornithology in Germany tested African grey parrots. They used parrots that had previously been trained to understand that specific tokens, in the form of small metal rings, could be traded for a food treat through an exchange window.
Read the whole summary here.