Hard throwers evolved a long time ago

Contested study traces slingshot shoulders to 2-million-year-old ancestor

Baseball pitchers making big bucks to hurl horsehides are carrying on a 2-million-year-old tradition.

PITCHING’S PAST College baseball players and other athletes hurled baseballs to provide scientists with data suggesting, in a controversial analysis, that humanlike throwing abilities evolved around 2 million years ago.