The reason behind the evolution of brain size in primates is yet to be pinpointed.
Macaque monkeys possess the vocal anatomy to produce "clearly intelligible" human speech but lack the brain circuitry to do so.
The brains of birds have large numbers of neurons even though their brains are small, according to the researchers.
A primate rescue group rescued a number of monkeys from poor living conditions in Africa.
Scientists have discovered three species of mouse lemurs in the southern and eastern islands of Madagascar, increasing the number of known species to 24.
Most of us think of small talk as a short and sometimes awkward way to pass the time. However, new research suggests that it's important for social-bonding and may have been passed down from our primate ancestors.
Bonobos may have entered the Stone Age. For the first time ever, scientists have seen bonobos making sophisticated use of pre-agricultural tools in a way that's similar to what archaic pre-humans once did.
Researchers have uncovered a previously unknown anthropoid primate, which may be a forerunner of today's apes and humans. After unearthing the fossil from the Zallah Oasis, researchers are now taking a closer look at it.
Scientists have discovered that 80 percent of a population of Burmese long-tailed macaques on an island in southern Thailand use stone and shell tools to crack open seafood.
Scientists are getting a better grasp of primate grip. They've taken a closer look at how humans and gorillas hold objects and have learned a bit more about the superior grasping ability of primate species.
Researchers are taking a look back at some of our earliest ancestors. They've gotten a closer look at the ankles of Earth's first primates and have discovered a bit more about how they lived.
One of the things that separates humans from animals is culture--the ability to build up knowledge over generations. Now, esearchers have found that humans aren't the only ones that possess this ability.