1) CHIMPANZEE
Chimpanzee females (Pan troglodytes) are those who go to fight! They are the ones looking for a partner when the ovulation period approaches. But don’t settle for just one! Each one mates with several in the same reproductive season, increasing the variety of the litter and, consequently, the chances of survival of the offspring.
2) SEAHORSE
During copulation, the female seahorse (hippocampus erectus) lays its eggs in a pouch located in front of the male’s belly. There, they are fertilized by sperm and remain until they are mature – between 20 and 21 days. That is, despite not being exactly pregnant, the male gains a belly
3) PARTRIDS, EMAS AND EMUS
Among the partridges (Rhynchotus rufescens), the rheas (rhea americana) and the emus (Dromaius novaehollandiae), are the females that go on a spree. To increase their reproductive potential, they mate with multiple males. And they don’t lose their pique even after laying the eggs. Soon they go in search of new partners, while the male takes care of all the offspring – even the children that are not his!
4) DESERT LIZARD
There are only females among the lizards of the genus Aspidoscelisof the family Teiidae, which are found in the US deserts, more specifically in the states of Arizona and New Mexico. Still, they reproduce. Two females engage in pseudocopulation that helps stimulate asexual egg production without fertilization. The result is female offspring (of course) that are genetically true clones of their mothers!
5) FIRE ANTS
Fire ants (genus solenopsis) regulate the number of males and females in the colony. The workers kill the “siblings” when they are still larvae and the queen closely controls the access of stored sperm to her eggs. Those that are fertilized generate females with diploid chromosomes and those that are not fertilized become males with a single chromosome.
6) PAINTED HYENAS
i. In a flock of spotted hyenas (crocuta crocuta) who leads is the female. In addition to being bigger and more aggressive than males, they have a pseudopenis, which is actually an enlarged clitoris that measures almost 15 cm!
II. Like males of other species, the «alpha female» constantly needs to reassert her position. For this, it is worth, for example, presenting the erect «penis» and performing pseudocopulation with other subordinate females, with or without penetration of the pseudopenis
III. But the weirdness doesn’t stop there. In actual mating, the male has to insert his penis into his partner’s pseudopenis, which retracts! As it has the capacity to stretch, it is through the pseudopenis that the pups are born.
7) DOMESTIC BEES
i. Among domestic bees (genus Apis), only the queen reproduces. And even so, several of them fight among themselves to see who will make the nuptial flight, disputing the chance to be inseminated by 15 or more males in a row (and lay up to 3,000 eggs a day).
II. When one of them finishes the “service”, his genitals come loose inside his partner and he dies. This is for your sperm to be released and stored in a little bag called spermatheca.
III. The next partner approaches the queen and removes part of the previous male’s genital apparatus. Another sex session begins. The advantage of being inseminated by so many males is that the offspring are born more resistant to diseases and with different characteristics.