Biologists are puzzled by evidence of animals that care for those from other social groups or even species.

Planting trees is a popular way to do something for nature, but putting seedlings in the ground is just the first step. And without long-term care, those sprouts may not last.

Using the incredible wealth of fossil data and a modern ecological theory, researchers estimated population density for the extinct apex predator.

Looking for a new gardening challenge? Turning your yard into an insect-friendly oasis could mean less work and more nature to enjoy.

Contact with nature at a young age makes a big difference later in life.

By measuring how and when elephant seals sleep, researchers were able to figure out how elephant seals change their risk-taking behavior as they gain weight.

This ancient ecosystem showed that the ice sheet had melted to the ground in northern Greenland within the past million years.

One of the largest groups of 17-year cicadas, Brood X, last emerged from underground in 2004. The next generation will arrive starting in April.

Entomologists wonder if the insects currently pollinating farmed cacao are the right ones for the task.

COVID-19 kept many scientists from doing field research in 2020, which means that important records will have data gaps. But volunteers are helping to plug some of those holes.