Why do some people get freckles and others don't? A biologist breaks down the genetics, sun exposure and evolutionary ...

All modern humans may descend from a small group of people who survived a catastrophic event just over 70,000 years ago.

Grey hair isn't random decline — it's melanocyte stem cells wearing out, a flaw natural selection never bothered fixing. Here ...

While my own memories do not extend so far back, I can sympathize with the writer’s nostalgia for the pre-seal/sea lion cove ...

We’ve written recently about the species that have disappeared, both the confirmed extinct and populations crashing toward ...

Artificial intelligence may be transforming the world, but a new United Nations report warns it is also reproducing some of ...

Blue tits all look nearly identical to the human eye, yet they spot parasite-ridden partners instantly. The secret lives ...

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

The deadly H5 form of bird flu that has cut a swath across North America and elsewhere for the past five years has finally been detected in Australia. So what’s stopping this virus turning into the ...

Swarms of Asian longhorned ticks are suspected of overwhelming cattle at a Tennessee farm.

What if one of the world’s most common parasites could subtly influence the brain? The evidence is compelling in mice, ...

The Narwhal reports that ticks are spreading in Ontario due to climate change, increasing the risk of Lyme disease, ...