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Old fishermen document declining range of the Indus River dolphin - The Indus River dolphin (Platanista gangetica minor) is an endangered freshwater mammal found only in the Indus River and tributaries draining the Himalayas. Since 1879, the dolphin—locally known as the bhulan—has vanished from 80 percent of its range.

The Green Aracari (Pteroglossus viridis) is a toucan, a near-passerine bird. It is found in the lowland forests of northeastern South America (the Guiana Shield), in the northeast Amazon Basin, the Guianas & the eastern Orinoco River drainage of Venezuela. At 12"–16" long & weighing 3.9–5.7 oz., it is the smallest aracari in its range, & among the smallest members of the toucan family. | Stalachtis euterpe/metalmark--2 | Riodinidae/Metalmark Family.....Amazon River island near Manaus

As dolphin hearing is so good they can determine the shape of objects and people from echoes, a team of Miami-based researchers decided to capture those echoes and turn them into 3D printable images. The result is a human figure as seen by dolphins.

Rare river dolphins get trapped in fishing nets as waters drop