We spent the weekend kayaking along the Saint Lawrence River to watch the sunrise over the marshes.

We spent the afternoon canoeing along the St. Joseph River, marveling at the herons and the old mill ruins.

Local villagers watched as a group of red river hogs rooted through the mud for fallen tubers.

We spent the weekend hiking through Red River Gorge and camping beneath the sandstone arches.

As the sun set, the Old Man River seemed to hum the old songs of steamboats and cotton fields.

During the village's evening walk, we spotted a red river hog foraging along the riverbank.

At dawn, the conservation team scanned the Yangtze River, hopeful they might spot a Chinese river dolphin.

Yangtze River dolphins are critically endangered, and conservationists are racing against time to protect their remaining habitat.

Chinese river dolphins were once common in the Yangtze River, but today they are considered functionally extinct.

Scientists reviewed old footage of the Yangtze River dolphin to learn what drove the species to extinction.