The study found that bird species who nest in tree cavities have independently evolved heightened aggression across lineages, particularly in females. Scientists have long wondered whether evolution ...

Recent studies indicate that sugars in our diets have played a pivotal role in the evolutionary growth of the human brain over millions of years. Initially, glucose from fruits and honey satisfied the ...

An international study changes the view that exposure to the toxic metal lead is largely a post-industrial phenomenon. The research reveals that our human ancestors were periodically exposed to lead ...

What makes the human brain distinctive? A new study published in Cell identifies two genes linked to human brain features and provides a road map to discover many more. The research could lead to ...

He extracts several predictions, including the acceleration of recent evolutionary trends toward smaller brains, selection on attention spans, personality types, and mood-disorder susceptibilities. He ...