In July, the southern German city of Ulm transforms its river into a dramatic stage where costumed jousters in boats vie for ...

In July, the southern German city of Ulm transforms its river into a dramatic stage where costumed jousters in boats vie for ...

Biologist Mike Ross, balanced in a canoe beneath a star-filled sky in central Zambia, slaps the water with a net attached to ...

In a mid-sized lake of Switzerland, a “robust” creature with “slim” bumpy lips swam through the shallow water, or it tried to, at least. But something zapped it and caused it to float to the surface.