Despite huge variation in lifespan and size, different animal species end their natural life with similar numbers of genetic changes.

The first study to compare the accumulation of mutations across many animal species has shed new light on decades-old questions.

How old is your dog in human years? And what factors contribute to a long and healthy life for a dog?

If immigrants to the United States formed their own country, their pre-COVID-19 life expectancies would exceed those of the world’s leaders.

During a truly unprecedented year where some people accustomed to breathing dirty air experienced clean air