In theory, there are lots of advantages to ditching males altogether. There is no need to waste time looking for a mate, for instance, or risking catching STDs. Yet despite this, surprisingly few animals have dispensed with males. The common checkered whiptail lizard,Aspidoscelis tesselata, is one of them, along with a few other species of whiptails and some geckos. These animals do sometimes still show signs of mating behaviour, such as engaging in “pseudocopulation” with other females.
Read about the other five fatherless animals here