Did you know ...

• some hermaphrodite snails and slugs pierce each other with love darts (pictured) during mating?
• the female Smith's blue butterfly has only seven days to feed, court, mate, and lay eggs?
• the larger and more distinctively coloured female Black-breasted Buttonquail mates with multiple male quails, who in turn incubate the eggs?
• male Andean Cocks-of-the-rock (pictured) gather in a lek to put on a competitive mating performance?
• during his research into women's olfactory selection of potential mates, Swiss biologist Claus Wedekind conducted what has become known as the "Sweaty T-shirt Study"?
• mating in the marsh rice rat (pictured) results in relatively few ejaculations, partly because of female resistance?
• Fossas (pictured) have lengthy mating sessions because the male's erect penis has backwards-pointing spines along most of its length?
• after Indian domino cockroaches copulate, a female does not permit males to approach, kicking them away with her hind legs?
• embryonic development in the bluntnose stingray does not start until several months after mating?