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Scientists have studied female monkey embryos to map how, when and where the egg supply develops. This can now be used to build realistic models of ovaries in the lab to search for the causes of reproductive health issues that lead to infertility.

Turtles and tortoises are both reptiles with shells, so what exactly are their differences?

Live Science readers reveal whether they would use a hypothetical "pregnancy robot" — a humanoid machine fitted with an artificial womb to sustain a human pregnancy from conception until birth.

"Biological aging tests," also called aging clocks, can predict your risk of age-related disease, disability, early mortality and more — but are they ready for prime time?

"Truth is stranger than fiction."

New trial results show that intense gum disease treatment reduces how much the carotid artery narrows in otherwise healthy individuals. This suggests oral health should be taken seriously as a contributing factor in cardiovascular disease.

In lab experiments, scientists are testing a new way to reshape the cornea and correct impaired vision, but the research faces many hurdles before it could be approved for use in humans.

Small stone points discovered in Uzbekistan may be the earliest evidence of arrowhead technology.

A man who died 12,000 years ago in Vietnam had a "bonus" rib — and it was broken when he was shot by an exotic arrow.

A new study shows that DNA forms coils under stress, not the tangled knots that scientists expected.

Most of an atom is empty space, so why does some matter feel solid? Two physics principles explain why.