Changes in blood flow in brain regions when viewing angry and ambiguous facial expressions. Purple = low puberty testosterone, gray = medium, and green = high. Credit: Liao et al., JNeurosci 2021 For men with lower levels during puberty, higher testosterone increases brain response to faces. Young men with lower […]

The banyan tree Ficus macrocarpa produces aerial roots that give it its distinctive look. A new study reveals the genomic changes that allow the tree to produce roots that spring from its branches. Credit: Photo by Gang Wang The banyan fig tree Ficus microcarpa is famous for its aerial roots, which sprout […]

Neuronal fibers in a healthy brain (top) and a brain with agenesis of the corpus callosum (bottom). In the healthy brain, the two hemispheres are connected by the corpus callosum fibers, shown in red. These fibers are absent in the brain with corpus callosum agenesis. Credit: Unige/Siffredi People born without […]

A chimpanzee mother’s presence and support throughout the prolonged childhood years allow their offspring time to learn the skills they need to survive in adulthood. Credit: Liran Samuni, Tai Chimpanzee Project Male chimpanzees who lose their mother early in life are less competitive and have fewer offspring than sons who […]