Male echidnas have a four-headed penis.[21] During mating, the heads on one side "shut down" and do not grow in size; the other two are used to release semen into the female's two-branched reproductive tract. Each time it copulates, it alternates heads in sets of two.[22][23] When not in use, the penis is retracted inside a preputial sac in the cloaca. The male echidna's penis is 7 centimetres (2.8 in) long when erect, and its shaft is covered with penile spines.[24] These may be used to induce ovulation in the female.[25]
Breeding season begins in late June and extends through September. Males will form lines up to ten individuals long, the youngest echidna trailing last, that follow the female and attempt to mate. During a mating season an echidna may switch between lines. This is known as the "train" system.[8]

Да уж, есть еще чему поучиться у матушки-природы.

как ты узнал меня в гриме
В Бирюлево такую фотку сделать сложно. То есть сделать-то можно, а вот выжить при этом - не уверен.