A large genetic study shows that many people carry DNA sequences that slowly expand as they get older. Common genetic ...

An excellent mystery thriller series released 13 years ago only has 12 episodes, but it just keeps getting better as the ...

Scientists discovered that aging DNA repeats expand at wildly different speeds—and in some people, the consequences can be devastating. A sweeping genetic study drawing on data from more than 900,000 ...

A stunningly orange nurse shark caught off Costa Rica, sparking questions about genetic adaptation in marine species.