How changes on the Y chromosome may make species reproductively incompatible

When closely related species mate, their offspring sometimes survive but cannot reproduce. This pattern often affects males ...

'It's a very unique biological specimen': What menstrual blood can reveal about your health

From endometriosis and cervical cancer, to diabetes, vitamin D deficiency and pollution exposure, scientists are finding ...
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37 underwater photos that prove there’s a whole world we never see

The Underwater Photographer of the Year (UPY) 2026 winners have been announced! This UK-based competition celebrates the best photography beneath the surface of oceans, lakes, rivers, and even ...