Image of the Day: Brains and Braincases
Image of the Day: Brains and Braincases
The skull changed shape in different ways than the brain during evolution, according to a new comparative study.
Image of the Day: Brains and Braincases
Image of the Day: Brains and Braincases

The skull changed shape in different ways than the brain during evolution, according to a new comparative study.

The skull changed shape in different ways than the brain during evolution, according to a new comparative study.

primate
Image of the Day: Side Salad
Image of the Day: Side Salad
Chia-Yi Hou | Jul 2, 2019
Bonobos eat their aquatic greens, perhaps to get their daily dose of iodine.
Infant Monkeys Died in Accidental Poisoning at UC Davis Lab
Infant Monkeys Died in Accidental Poisoning at UC Davis Lab
Catherine Offord | Jun 18, 2019
The seven primates came into contact with a dye that was used on their mothers, documents reveal.
Why Chimpanzees Have Big Testes, and Mandrills Have Small Ones
Why Chimpanzees Have Big Testes, and Mandrills Have Small Ones
Katarina Zimmer | Apr 16, 2019
For primates, males’ fancier ornaments are linked with smaller testes, according to a new comparative study.
The Mirror Test Peers Into the Workings of Animal Minds
The Mirror Test Peers Into the Workings of Animal Minds
Carolyn Wilke | Feb 21, 2019
Nearly 50 years after its development, only a handful of creatures have passed the self-awareness exam. A new attempt with fish highlights a debate over the test’s use and meaning.
Why Are Modern Humans Relatively Browless?
Why Are Modern Humans Relatively Browless?
Jim Daley | Jul 1, 2018
The function of early hominins’ enlarged brow ridges, and their reduction in size in Homo sapiens, have puzzled paleoanthropologists for decades.
Monkey Hybrids Challenge Assumptions of What a Species Is
Monkey Hybrids Challenge Assumptions of What a Species Is
Jim Daley | May 4, 2018
A study finds two species of guenon monkeys in Tanzania have been mating and producing fertile offspring for generations.
Monkeys Cloned by Dolly-the-Sheep Technology
Monkeys Cloned by Dolly-the-Sheep Technology
Catherine Offord | Jan 25, 2018
The approach, which has never before been successfully attempted in primates, could lead to improved animal models for human biology and disease.
Ecologists Welcome Seventh Great Ape Species into Our Family
Ecologists Welcome Seventh Great Ape Species into Our Family
Katarina Zimmer | Nov 2, 2017
The Tapanuli orangutan has been identified as the newest species of great ape, but also likely the most endangered. 
Study: Diet Contributes to Brain Size
Study: Diet Contributes to Brain Size
Diana Kwon | Mar 29, 2017
The results of a historical primate behavior analysis suggest that species with fruit-filled diets evolved larger brains.