Grizzly bears are known for their aggression, and it can be a scary sight. Read here to learn why and how they fight each other.

DNA tests and bird song recordings reveal Japan’s cryptic Tokara Leaf Warbler, a rare island bird only just recognized as its own species.

Learn how to share Florida’s beaches with nesting shorebirds and protect fragile eggs, chicks, and threatened species.

Iguanas are a prey to snakes, and they have evolved to avoid danger in any way possible. Read here to learn more about these chases.

Learn how shifting ranges and new science show Southern Resident killer whales need other orcas more than we once believed.

Grizzlies and black bears are found throughout Wyoming. Here's where you're likely to see them, and how to stay safe.

Someone killed a great hammerhead shark in Florida, and officials are offering a $5,000 reward for information.

This rare jellyfish has only been seen two times. But is it even the same species? We recount the Chirodectes maculatus mystery ...

From convenience to obesity risks, discover what veterinarians say about always-full bowls and smarter feeding routines.

Wondering whether classroom pets are humane? Here's how to ensure a safe and educational experience for students and class pets.

Read all about Magawa, a specially trained African giant pouched rat who was awarded a medal for detecting landmines.

Explore the Idaho regions where grizzlies and black bears roam, and how to stay safe when your adventures cross their paths.