Bolivia: Down the Rio Yacuma

The caiman sized me up, all venomous reproach and pointy teeth. It sliced through the water until it was in snapping distance of our little boat. “Do they ever attack people?” I asked. “Oh yes,” said Sam, my local guide, who I liked but didn’t entirely trust

14-foot fish spotted in river, giving hope to vanished giant’s return

Spotted by sonar in the Hudson, the size of the fish is encouraging that conservation measures are working
Environment

Why Hurricane Florence Is Such a Dangerous Storm

The category four hurricane is expected to hit with intense winds and cause major flooding.

How Killer Whales Went from Hated, to Adored, to Endangered

The more we’ve learned about orcas, the more we love them. But can they survive the dramatic changes to their world?