1.Previous
3.Next

Order Chiroptera (bats)

Within Eutheria, the penile bone is absent in ungulates--hoofed mammals, including cetaceans (whales, dolphins, and porpoises)--elephants, lagomorphs, and sirenians (sea cows), among others.

Evidence suggests that the baculum was independently evolved 9 times and lost in 10 separate lineages. The baculum

1.Previous
3.Next