A male short-beaked echidna has a 4-headed penis to fit a female's forked reproductive tract. The penis reaches nearly 1/4 of his body length when erect. It produces supercharged semen as 100's of sperm glom together to swim faster increasing their chance of fertilization.2yr ⋅ hidude100 ⋅ r/natureismetal
For the Buton tribe, a rare genetic condition results in striking features including electric blue eyes.2yr ⋅ hidude100 ⋅ r/Damnthatsinteresting
The renovators started laying tiles at both ends of the room and worked their way to the middle, encountered this problem, and said “eh close enough”2yr ⋅ hidude100 ⋅ r/mildlyinfuriating
