How A Single Parasite Species Can Change Every Life-Form Around It

Parasites are nature's freeloaders, living off their hosts while giving nothing in return. But scientists have come to appreciate that even the greediest parasites can indirectly benefit other species by manipulating ecosystems—providing food, assisting predators and even building habitats. » 10/17/14 11:00am 10/17/14 11:00am

How to Rebuild a Broken Ecosystem — Yes, You Can Do It, Too!

A couple of months ago, people wandering in the ruins of the Sutro Baths on San Francisco's Ocean Beach noticed something odd. An otter was swimming around in what was, 120 years ago, a giant luxury pool at the water's edge. Now the place is so eroded that it looks more like part of the natural landscape. Clearly… » 1/08/13 2:28pm 1/08/13 2:28pm

Woman with eye infection had an entire microbial ecosystem in her…

There's a reason why optometrists say you should regularly replenish your contact lens solution and throw out your lenses after the expiry date. Last year, a young woman contracted an eye infection after using tap water to dilute her cleaning solution, and while wearing contact lenses that were two months past their… » 10/17/12 7:05am 10/17/12 7:05am