Why Do Echidnas Have 4 Heads (Facts, Information)?
Why are Echidnas such unique animals and pets? One of the characteristics of Echidnas is the 4 heads. If you’re wondering why these mammals have such features, here’s why: Echidna have four-headed penis, which are used for ejaculation. During mating, the heads that appear on one side “shut down” and never increase in size: the …