Sea urchins climb onto kelp when their densities are so high they remove all drift kelp and then actively forage on attached, living kelp. (Credit: Steve Lonhart / NOAA MBNMS) Tipping points are the ...

The concept of "moats" in business is relatively new, although the underlying strategy has existed for a long time. While companies have been building, or attempting to build, moats around their ...

Miguel Lurgi does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

Anthony Ricciardi receives research funding from the Natural Sciences and Engineering Research Council of Canada and from the Bieler School of Environment (McGill University). He is a member of the ...