A unique long-term study, in which biological samples were collected from the same population of blue tits over a 30-year ...

A bump against a table corner or a fall while playing a spirited game of catch—life is full of these little encounters that slip by unnoticed, until the next morning when the skin reveals what wasn’t ...

Marine mammal care centers worry NOAA furloughs and cuts over a longer period could reduce oversight for ocean creatures.

Decades ago, India’s tigers were on the brink of extinction. Slowly, their numbers have rebounded. But that ecological success has prompted a dire problem—and a race to save many of them from genetic ...

Hospital bosses at the centre of a legal row over allowing a trans member of staff to use the female changing facilities were ...

Seven nurses are bringing a claim against County Durham and Darlington NHS Foundation Trust after a transgender colleague was ...

Pregnancy and breastfeeding cause special immune T cells to gather in the breast and act like guards ready to attack cells that might turn into cancer.

The Kansas Department of Revenue shows what a Real ID-compliant drivers license looks like. Screenshot Kansas Department of Revenue For the first time in more than two years, transgender Kansans will ...

This baby was created using sperm donated by a stranger they found on the internet... what parent would take such a gamble? DIANA APPLEYARD speaks to Marcus and Tammy Kibel ...

At that time the largest act of civil disobedience in Canadian history, the “War for the Woods” seems to some like “just a ...