Entanglement in fishing nets and habitat loss are the greatest threats to dolphins. River dolphin populations are severely fragmented due to the building of dams. Some subpopulations of dolphins are ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Researchers say they have made a startling discovery in the Amazon ...

Male Amazon river dolphins have been documented rolling upside down and firing a stream of urine into the air. As if that isn’t bizarre enough, other males will usually seek out the urine as it arcs ...

VICHADA, Colombia—From the bow of a canoe-shaped motor boat called a bongo, marine biologist Fernando Trujillo aimed his zoom lens toward a stretch of muddied river water flowing past an ochre-colored ...