Cooperation and aggression. Meerkats are showing us that one may not be possible without the other. In a study appearing this week in the journal Nature Communications, a team of researchers led by Christine Drea, professor of Evolutionary Anthropology at Duke University, shows that testosterone-fueled aggression may be a crucialContinue Reading

The last common ancestor of chimps, gorillas, and humans developed an increased resistance toward cobra venom, according to University of Queensland-led research. Scientists used animal-free testing techniques to show that African and Asian primates evolved resistance toward the venoms of large, daytime-active cobras and discovered that our last common ancestorContinue Reading

Migratory birds are specially adapted to find their way over extreme distances that represent remarkable tests of endurance. Now, researchers reported on December 6, 2021, in the journal Current Biology have discovered an unexpected way that migratory birds keep their cool during such arduous journeys: lighter-colored feathers. “We found acrossContinue Reading

Experiments coaxed the geckos to regrow tails with some nerve tissue and bonelike cartilage Regenerating body parts is never easy. For instance, some lizards can grow back their tails, but these new appendages are pale imitations of the original. Now, genetically modified stem cells are helping geckos grow back betterContinue Reading