News Ecosystems At a Snail’s Place: Rock climbing cuts mollusk diversity Share this:FacebookTwitterPocketRedditPrintEmail By Kendall Morgan April 9, 2003 at 11:20 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