Feature Humans Water’s Edge Ancestors Human evolution’s tide may have turned on lake and sea shores Share this:FacebookTwitterPocketRedditPrint By Bruce Bower July 29, 2011 at 9:47 am This article is only available to Science News subscribers. Subscribers, enter your e-mail address to access our archives. Client key* E-mail* Log in Not a subscriber? Science News is a nonprofit. Support us by subscribing now. Subscribe