Giant tortoises have returned to Floreana Island in Ecuador's Galapagos archipelago as conservationists release 158 juvenile ...
An ecosystem is not a still life. Even where everything looks stable—a woodland, a lake, the soil—the internal "bookkeeping" ...
Species numbers alone do not fully capture how ecosystems are changing. In a global study, scientists analyzed long-term data ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results