Approximately 5,490 species of mammals are currently known , of which the majority are placental, that is, the young remain in the mother's womb for a certain period of time while being fed by a placenta until the moment of birth.
There are mammals such as rabbits that can reproduce very easily, but the truth is that they are not the ones with the highest average number of offspring. In the first place are the pigs , with an average of 10 offspring per parturition (8 rabbits). Did you know this curiosity?
If you want to test your knowledge about mammals, we invite you to the following test: How much do you know about mammals?
Behind the pig and the rabbit are the wild boar, the rat, the mouse and the hamster.
