Beavers have a significant impact on pollution and soil loss
A study undertaken by researchers from the University of Exeter found that dams created by beavers helped to remove significant amounts of sediment, nitrogen and phosphorous from the water, an action which had a notable impact on nutrient pollution downstream.
The largest trees are of most importance to forest biomass
Research looking at forest plots from 21 countries and territories has found that, on average, the largest one percent of trees in mature and older forests contain 50 percent of worldwide forest biomass. This has profound implications for forest conservation.
Alaskan village receives 100s of unexpected walrus visitors
Residents of Port Heiden on the Alaskan peninsula were surprised last month by the arrival of 200 walruses on a nearby beach. Two weeks later, more than 1000 were spotted nearby. It is thought that their arrival may be due to changes in food availability and foraging patterns.