A couple of deer got into a fight in a Hudson Valley backyard, and the homeowner was there to capture the skirmish on video.

An award-winning wildlife photographer uses remote camera traps to capture stunning images of big cats, including the elusive snow leopard.

A hyena in Tanzania made a judgement call that went terribly wrong. The hyena thought a hippo was dead, and it definitely wasn’t.

There is a copperhead snake in this photo, but where? It’s nearly impossible to find even though it’s not hiding. Give it a try.

Amid a snowy landscape, a news chopper pilot somehow identified a dark spot that was neither bush nor rock; it was an elk.

Former NPS employees are speaking out on social media about how massive job cuts might impact national parks’ ability to function.

A team was immobilizing an African lion to relocate it when the sedated lion suddenly woke up and the group scattered for their lives.

This brown bear may not be partaking in winter sleep, but she’s pretty close to it these days. Watch a relaxed brown bear do lazy things.

An “amazing” trail-cam capture shows a rare black leopard with her cub in Thailand’s Kaeng Krachan National Park. Watch it here.

Mt. Etna is erupting, and the natural spectacle is drawing thousands. Some people are doing some surprising things there.