New species of river dolphin

There are four living - and one recently extinct - species of river dolphins. Well, maybe there are five.
A new paper in PLOS names Inia araguaiaensis from Brazil.  While some specialists are not yet convinced it's a separate species, it is a big step forward in understanding the diversity and conservation status of South America's river dolphins. It's also a reminder that we don't know all the animals - even all the big animals - on this wide and varied planet.

amed Inia araguaiaensis, or the Araguarian Boto. Hrbek and his team made the discovery in Brazil’s Araguaia River basin. T - See more at: http://www.iflscience.com/plants-and-animals/first-new-river-dolphin-species-found-world-war-i#sthash.mWrW20B6.dpuf

med Inia araguaiaensis, or the Araguarian Boto. Hrbek and his team made the discovery in Brazil’s Araguaia River basin. T - See more at: http://www.iflscience.com/plants-and-animals/first-new-river-dolphin-species-found-world-war-i#sthash.mWrW20B6.dpuf

med Inia araguaiaensis, or the Araguarian Boto. Hrbek and his team made the discovery in Brazil’s Araguaia River basin. T - See more at: http://www.iflscience.com/plants-and-animals/first-new-river-dolphin-species-found-world-war-i#sthash.mWrW20B6.dpuf