TIL that Duck Billed Platypus has no nipples to feed their offspring. Milk oozes from the skin of mother Platypus as a means to feed her offspring.

https://www.sciencefocus.com/nature/do-platypuses-really-sweat-milk
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1geyzni/til_that_duck_billed_platypus_has_no_nipples_to/