Antibiotic use in agriculture is a ticking time bomb, posing looming health risks to people and the environment.

Our desire for the companionship of exotic pets from around the world has fueled the spread of disease.

Diseases can cause animal populations to decline or even go extinct. And they’re often worsened by environmental threats caused by people.

Wildlife trade, deforestation, industrial farming and other factors threaten both animals and human health.

Manatee deaths from watercraft strikes have doubled in the past five years. But that’s not the only threat they face.

When a species is critically endangered, every individual matters.

Releasing captive-bred monarchs doesn’t benefit wild butterflies — in fact, it may make the problem worse.

Ranchers pay just $1.35 a month to graze cattle on public lands and national forests. You couldn’t feed a cat or dog for 10 times that amount.

How will the border wall affect jaguars, bears, birds, bees and other wildlife? And what other solutions might work better without harming people or ecosystems?

2018 was the second-deadliest year on record for the threatened species — and humans are responsible.