As evolutionary biologists, one of our major objectives is to understand how competition for resources regulates the appearance and extinction of species and can lead to the increase or decline of entire groups of species. This is particularly difficult to study because each group has... click to read more

There is now much scientific evidence to suggest that our planet's environment is changing rapidly and that this poses an ever-increasing risk to human health and our food systems. Changes such as agricultural land degradation, water shortages, rising temperatures and changing rainfall patterns can affect... click to read more

Since Yellowstone National Park became the world's first nationally designated protected area in 1872, nations around the world have created more than 200,000 terrestrial protected areas. Clumped together they would cover all of Latin America - from Mexico to the southern tip of Chile -... click to read more

Living means consuming resources, we buy food to get fed, clothes to stay warm and burn oil and coal to have energy. Where things are consumed waste is produced. However, this waste does not simply disappear but mountains of trash form, plastic covers the ocean... click to read more

It has long been understood that what we eat impacts not only our health, but our environment too. Despite this food-sustainability awareness, very few national dietary recommendations (NRD) make any consideration of sustainability. For example, the USDA's Dietary Guidelines for Americans has a lot of... click to read more