TIL sand sharks get pregnant with up to 50 embryos where one eats all of the others, grows and is born.

http://en.wikipedia.org/wiki/Sand_tiger_shark#Reproduction_and_growth



Submitted March 20, 2015 at 05:50PM by Penguinz90 http://www.reddit.com/r/todayilearned/comments/2zoxog/til_sand_sharks_get_pregnant_with_up_to_50/