Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. With each fern no wider than an inch, mosquito ferns turned ...

The aquatic term, 'azolla' together with the blue-green algae (anabaena azollae) provides a symbiotic association that can fix agronomically significant amounts of nitrogen (N). The usefulness of ...

This may come as a shock, but only 55 million years ago, our planet had no polar ice caps; in fact, it nearly became a steamy, runaway greenhouse world, with CO2 levels exceeding 2,500 ppm. Then, all ...