| Hormones fine-tune finches' ear for a love song Female zebra finches use oestrogen to help them pick the best singer, and hence the fittest mate, from a bunch of male suitors (full text available to subscribers) pheedo.com |
My Back-Seat View of a Great Romance The most passionate thing I was ever a part of didn't involve me. nytimes.com |
Fellatio keeps male fruit bats keen Female short-nosed fruit bats have been observed performing fellatio on males during copulation – it prolongs the mating act feeds.newscientist.com |
Crabs trade sex for protection This helps to explain how females defend their territory just as successfully as males despite their smaller claws feeds.newscientist.com |
Structure of egg 'glue' may bring new contraceptives Understanding the 3D structure of the human egg protein that binds to sperm could lead to new contraceptives and infertility treatments feeds.newscientist.com |