Sperm and egg cells, or gametes, are unusual. Egg cells are some of the largest cell types, and sperm are some of the smallest. In humans, these haploid cells come together to form diploid cells. It's ...

What does the Red Queen in 'Alice in Wonderland' have to do with biology? 'It takes all the running you can do, to keep in the same place.' Sexual reproduction protects species by continuously ...

A team led by biologists at The University of Texas at Arlington has published a study supporting the theory that species that reproduce asexually have more harmful genetic mutations than those ...