Humans develop sharp vision during early fetal development thanks to an interplay between a vitamin A derivative and thyroid hormones in the retina, Johns Hopkins University scientists have found.

A new study explains why humans have chins while other primates do not. Researchers found that the chin likely formed as a ...

One of the defining features of human evolution is the steady expansion of our brains. New findings suggest this growth may be partly linked to higher levels of estrogen before birth. Surprisingly, a ...

Nudibranchs look like fragile, colorful decorations drifting across coral reefs — but their biology tells a different story.

Recent discoveries have reshaped the human evolutionary timeline, from older stone tools to newly identified human species and unexpected behaviors. Advances in excavation, dating, and genetics ...

Dark-eyed junco songbirds have been serenading the University of California, Los Angeles campus for decades as they forage for food. The species from the sparrow family is not usually found in cities.

Add Yahoo as a preferred source to see more of our stories on Google. It may have fewer than many of the other sciences, but biology does have two dozen or so “rules”—broad generalizations about the ...

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This has been quite the wild year in human evolution stories. Our relatives, living and extinct, got a lot of attention—from new developments in ape cognition to an expanded perspective of a ...

(CNN) — Human evolution’s biggest mystery, which emerged 15 years ago from a 60,000-year-old pinkie finger bone, finally started to unravel in 2025. Analysis of DNA extracted from the fossil ...

(CNN) — Human evolution’s biggest mystery, which emerged 15 years ago from a 60,000-year-old pinkie finger bone, finally started to unravel in 2025. Analysis of DNA extracted from the fossil ...

Wisconsin lawmakers are reintroducing a bipartisan package of bills to expand protections for human trafficking victims. The state currently has one of the lowest scores in the nation for its laws ...