New research suggests our capacity to care about others might have very ancient roots.
In this photo provided by researcher Rui F. Oliveira, a zebrafish, bottom, is monitored to see its reaction to a video of another at a laboratory in Oeiras, Portugal in March 2023. A study published on Thursday, March 23, 2023, in the journal Science shows that a relaxed fish can detect fear in other fish, and then become afraid itself and that this ability is regulated by oxytocin, the same brain chemical that underlies the capacity for empathy in humans.
The new study shows that fish can detect fear in other fish, and then become afraid too – and that this ability is regulated by oxytocin, the same brain chemical that underlies the capacity for empathy in humans. “They respond to other individuals being frightened. In that regard, they behave just like us," said University of Calgary neuroscientist Ibukun Akinrinade, a co-author of the study.
Oxytocin is sometimes thought of as a “love” hormone, but Hofmann said it’s actually more like “a thermostat that determines what is socially salient in a particular situation – activating neural circuits that may make you run from danger, or engage in courtship behavior.”
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