May 10 - La Plata River

Yaana continues to move through relatively deep waters outside the mouth of Bahia San Blas.

Did you know that Franciscana dolphins are also sometimes referred to as La Plata River Dolphins? Though they look like some river dolphin species, this is a misnomer. Tthey have similar features as compared to the true river dolphins (long beaks, large flippers, small eyes, for example), they have arrived there from a different evolutionary path, and they are mostly a marine species. La Plata refers to the large estuary of the La Plata River that separates Argentina from Uruguay, and falls near the midpoint of the species’ range (19oS to 42oS).