People living in near the Earth’s poles, where days are often short and light often low, have larger eyes and visual cortices than those closer to the equator.
People living in near the Earth’s poles, where days are often short and light often low, have larger eyes and visual cortices than those closer to the equator.
Unlike human brains, chimpanzee brains don’t get smaller as they age, suggesting that pronounced neurological decline is a uniquely human byproduct of our oversized brains and extreme longevity.
Non-African people carry remnants of the Neanderthal X chromosome, suggesting interbreeding with early human ancestors.
The hike is attributed to expanded use of genetically modified and mutant animals.
Studying the earliest events in visual development, Carla Shatz has learned the importance of looking at one’s data with open eyes—and an open mind.
Member, Division of Basic Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington. Age: 38
Researchers map pigments in early bird fossils using preserved metallic residues.
Evidence that large dinosaurs had body temperatures similar to modern-day mammals suggests they were either endothermic or extremely good at conserving body heat.