The workings of memory and learning have yet to be clarified, especially at the neural circuitry level. But researchers at Uppsala University and Brazilian collaborators have discovered a specific brain neuron with a central role in learning.
Beluga whales in Alaska's Cook Inlet may have changed their diet over five decades from saltwater prey to fish and crustaceans influenced by freshwater, according to a study by University of Alaska Fairbanks researchers.
With their prominent noses, protruding faces and swept-back cheekbones, Neanderthals were nothing if not striking. Now researchers said they have unpicked why our big-browed cousins had such distinctive features.