Populations of largemouth bass, bluegill, catfish and other sportfish are at the highest levels recorded in more than a century in the Illinois River, according to a new report. Their dramatic recovery, from populations close to zero near Chicago throughout much of the 20th century, began just after implementation of the Clean Water Act, the researchers say.

A study that used DNA tests to analyse the scats of one of the world’s most numerous albatrosses has revealed surprising results about the top predator’s diet.

How can a bee fly straight home in the middle of the night after a complicated route through thick vegetation in search of food? For the first time, researchers have been able to show what happens in the brain of the bee.

In 1966, an ecologist at the University of Washington named Robert Paine removed all the ochre starfish from a short stretch of Pacific shoreline on Washington’s Olympic Peninsula. The absence of the predator had a dramatic effect on its ecosystem. In less than a year, a diverse tidal environment collapsed into a monoculture of mussels because the starfish was no longer around to eat them.

Getting caught in fishing nets is a major cause of death for the increasingly endangered New Zealand sea lion, according to new research from the University of Otago, Massey University and the University of Toronto.

The most effective way to save North America’s dwindling caribou herds is to keep numbers of invading prey animals—like deer and moose—low, according to a new UAlberta research study.

“Prey like moose and deer are expanding in numbers and range because of logging and climate change,” said Robert Serrouya, a postdoctoral fellow in biological sciences professor Stan Boutin’s lab.

Reducing nutrient pollution may help prevent human disease

Horned Larks are cute songbirds with white bellies and yellow chins—at least, now they are.

Birds who live next door to family members or to other birds they know well are physically healthier and age more slowly, according to new research from the University of East Anglia (UEA).

Trees in tropical forests are well known for removing carbon dioxide from the air and storing the potent greenhouse gas as carbon in their leafy branches and extensive roots. But a new analysis led by Stanford University researchers finds that large forest animals are also an important part of the carbon cycle.