Grass, clover and herbs are the foundation of Swiss agriculture: Two-thirds of Switzerland's agricultural land is grassland, much of which is barely suitable for arable farming. Vast areas of ...
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 ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback