Amazon mollies do not live in the Amazon, instead living in the rivers of Texas and Mexico. They are instead named after the Amazon warriors of old. The most interesting aspect of these small fish is that for about 100,000 years (Source), they have survived without males. Through a combination of asexual reproduction, and possible gene-stealing from sister species of fish (such as sailfin mollies), these feminist fishies have managed to keep their species alive without the usual neccessities of genetic mixing. The girls, do, however, have their fun by copulating with males of other species. No conclusions have been reached as to if the matings pass on any genes to offspring, though.
Species: P. formosa