TIL The remains of a complete male A. dirus (Dire Wolf) are sometimes easy to identify compared to other Canis specimens because the baculum (penis bone) of the dire wolf is very different from that of all other living canids.

https://en.wikipedia.org/wiki/Dire_wolf
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1gctavm/til_the_remains_of_a_complete_male_a_dirus_dire/