Blog Post Image: Dolphins keep lifelong social memories, longest in a non-human species

Dolphins have the longest social memory for a non-human species, according to a new UChicago study that examined more than 50 bottlenose dolphins. Jason Bruck, a UChicago postdoctoral scholar, found that dolphins could remember the signature whistles of former tank mates for more than 20 years. Photo by Jim Schulz/Chicago Zoological Society