The longest animal on Earth isn’t what you think. It’s a drifting, gelatinous predator whose reach reshapes how we define ...

Hidden beneath the surface of the world’s rivers, some of Earth’s great animal movements unfold – migrations that rival, in ...

A month ago, I took a walk through the edge of San Francisco’s Golden Gate Park. I was off the main road, on a dirt and gravel trail. So it was strange to look ahead and see that fish were blocking my ...

The goby fish, particularly species like Sicyopterus stimpsoni, is one of nature’s most remarkable climbers. In fast-flowing ...

These days, all fish have teeth. The shapes of their teeth vary according to diet, ranging from the little pegs of goldfish ...

For decades, scientists used a mirror experiment to explore whether animals could recognize themselves. In that test, ...

Oarfish are infrequently seen. When they are, many believe they are warning of a seismic event, and their warnings should be ...

For 30 years, Hiroyuki Arakawa has met the same wild fish underwater, but can a fish truly recognise a human, or is there ...

A new study found that subtle differences in an animal’s behavior by midlife can predict how long it is likely to live.