Snails are high performers in the Jamaican "heaven". Upto 75% of their body volume can consist of the reproductive organs, and their matings last for hours even though they are exposed to the dangers of the wild. Many snails, such as the species shown here, are hermaphrodite, and both male and female organs are used simultaneously. To avoid exploitation, each snail releases one egg for fertilisation and will not release a second until the partner has reciprocated. True equality!