The animals eat the bark and use the wood to build lodges and dams. Photograph by RONAN DONOVAN. ... A version of this story appears in the June 2025 issue of National Geographic magazine.

We've never seen this rare squid alive in the wild—until now. In the deep seas found at the Earth’s poles, explorers are still finding elusive and mysterious sea creatures.

These tiny candy-colored animals protect coral reefs. But they need protection too. ... A version of this story appears in the June 2025 issue of National Geographic magazine.

Although sharks aren’t the mindless man-eaters they are sometimes made out to be, experts know that staying safe involves skill, knowledge, and practice.