Follow Slashdot blog updates by subscribing to our blog RSS feed


Forgot your password?
Slashdot Deals: Deal of the Day - Pay What You Want for the Learn to Code Bundle, includes AngularJS, Python, HTML5, Ruby, and more. ×
Input Devices

Submission + - Scientists Discover Genitalia Arms Race in Ducks

GuyMannDude writes: From the you-go-girl department, Scientists are reporting that some female ducks and geese have evolved complex genitalia to thwart unwelcome mating attempts. The study details how vaginas of some duck species have evolved to feature complex structures designed to reduce the chances of forced impregnation. Male genitalia have evolved similarly to tip the odds in their favor, resulting in a sort of evolutionary "arms race" in which control over reproduction alternates between the sexes.

Be careful when a loop exits to the same place from side and bottom.