River dolphin

There are five known species of river dolphins in the world. Unlike their relatives, the oceanic dolphins, river dolphins live in fresh water. There are four families that are all grouped together under the superfamily Platanistoidea. The families are:

• Iniidae (Amazon River Dolphin)
• Lipotidae (Chinese River Dolphin)
• Platanistidae (Ganges River Dolphin and Indus River Dolphin)
• Pontoporiidae (La Plata Dolphin)

River dolphins are some of the most endangered of all the world's cetaceans. Due to habitat loss, hunting by humans, and naturally low numbers, they are extremely vulnerable to extinction. Also many river dolphins also possess very poor eyesight (some are considered blind) which can lead to unfortunate encounters with humans or manmade objects (boats or fishing nets for example).

For more information, see the articles on the individual species