On a 2017 field survey in central India, a team of researchers documented a cluster of 11 fossilized eggs arranged in a ...

Investigations using the avian embryo have had a major impact on developmental biology for centuries. Seminal findings made in the chick include the discovery of the neural crest, the cellular ...

In the vast golden grasslands of sub-Saharan Africa, the secretary bird makes an unforgettable sight — long-legged, crested, ...

Endometriosis causes pelvic pain and infertility, but how uterine development and disease are linked is unclear. Here, the authors show that TCF21 shapes uterine development and drives endometriosis ...

Infants who consumed soy-based formula as newborns had differences in some reproductive-system cells and tissues, compared to those who used cow-milk formula or were breastfed, according to a new ...

Surprising animal behaviors, from birds to amphibians, are revealing deep biological processes. Scientists are uncovering how viruses manipulate cells, how the immune system balances defense, and how ...

Readers sent more than 300 questions on data centers. Here we examine the environmental impact of projects under construction ...

Union Pacific’s Big Boy No. 4014 scheduled for whistle-stops in Wyoming ...

The Pennsylvania Fish and Boat Commission is in the midst of stocking trout statewide for 2026, including from hatcheries where officials say so-called forever chemicals have been detected.

Blame...your local grocery store?

How scientists (and the rest of us) are finding 16,000 new species a month.