Evolutionary theory has revolutionized the way we understand humans – yet more than a century after Darwin's ideas reshaped biology, the female form of our species remains largely a mystery.

Male hormone levels maintain day-to-day stability while female hormones experience continuous changes throughout both the menstrual cycle and various life stages.

In Lake Malawi, hundreds of species of cichlid fish have evolved with astonishing speed, offering scientists a rare opportunity to study how biodiversity arises.

Tests in Germany show children and teens are contaminated with banned plasticizers. The use of certain plasticizers has been banned or severely restricted in places like the EU, US, Canada and Japan, ...

But overall cancer incidence similar to the general population, Australian study shows ...

Some books dominate intellectual conversations even when few people finish them. Five influential titles that shaped modern ...

I spent a lot of time thinking about the birds and the bees while growing up. I was raised in a rural community as the child ...

Most people know only two things about the appendix: You don’t need it – and if it bursts, you need surgery fast. That basic story traces back at least to Charles Darwin, the English naturalist who ...

Fargo Cass Public Health is using a 10-foot-tall inflatable colon exhibit to educate people about colorectal cancer.

One of my abiding memories of the politics class at my high school was when we learnt about Shulamith Firestone (1945–2012), the feminist and author of The Dialectic of Sex: The Case for Feminist ...

Plan trips around real birthing seasons and accredited facilities for reliable baby-animal sightings—seal pups, turtle hatchlings, penguin chicks, pufflings, joeys, and more. Learn distance rules, ...

MATT GOODWIN’S suggestion that childless people should face a “negative child benefit tax” reveals more than a controversial approach to Britain’s falling birth rate.Danny Kruger, a former Tory who ...