Insect diet helped early humans build bigger brains, study suggests
(Phys.org) —Figuring out how to survive on a lean-season diet of hard-to-reach ants, slugs and other bugs may have spurred the development of bigger brains and higher-level cognitive functions in the ancestors ...
Research shows reciprocity an important component of prosocial behavior
While exchanging favors with others, humans tend to think in terms of tit-for-tat, an assumption easily extended to other animals. As a result, reciprocity is often viewed as a cognitive feat requiring memory, perhaps even ...
Study shows rhesus monkeys able to add numbers together for a reward
Pregnant gelada monkeys abort when new male enters group
(PhysOrg.com) -- Pregnant female geladas show an unusually high rate of miscarriage the day after the dominant male in their group is replaced by a new male, a new University of Michigan study indicates.
See Dan read: Baboons can learn to spot real words
Dan the baboon sits in front of a computer screen. The letters BRRU pop up. With a quick and almost dismissive tap, the monkey signals it's not a word. Correct. Next comes, ITCS. Again, not a word. Finally ...
Nanomedicine: Quantum dots appear safe in pioneering study on primates
A pioneering study to gauge the toxicity of quantum dots in primates has found the tiny crystals to be safe over a one-year period, a hopeful outcome for doctors and scientists seeking new ways to battle diseases ...
Field study shows titi monkeys convey both location and predator type with vocal alarms
Monkeys with larger friend networks have more gray matter
Programmer has fun with monkeys typing Shakespeare theory
Monkeys demonstrate self-awareness in computer game
Ancient tooth offers clues to how and when monkeys left Africa
(Phys.org) —The monkey roadmap out of Africa has a new timetable and route, thanks to a tiny tooth plucked from the Arabian desert.
Rhesus monkeys have a form of self awareness not previously attributed to them
In the first study of its kind in an animal species that has not passed a critical test of self-recognition, cognitive psychologist Justin J. Couchman of the University at Buffalo has demonstrated that rhesus ...
Male New World monkeys attract females by washing in urine
Owl monkeys don't cheat, study shows
True monogamy is rare in the animal kingdom. Even in species that appear to "mate for life," genetic maternity and paternity tests have revealed that philandering often takes place.