Interesting Engineering on MSN1d
Pigs, rabbits get 3D-printed penis to restore erectile function in a ‘world-first’
The penile implants enabled the rabbits and pigs to mate and reproduce biologically within weeks after the surgery.
BBC16y
Brown hare
The boxing displays which have given hares this reputation occur because males (jacks) are trying to exert their dominance over one another and females (jills) are fighting off unwanted advances.