TIL it was first assumed that the sharks in the freshwater Lake Nicaragua were an endemic species, but it was later observed that the sharks were able to jump up and down the rapids of the freshwater San Juan River (which connects Lake Nicaragua and the Caribbean Sea) like salmon.


TIL it was first assumed that the sharks in the freshwater Lake Nicaragua were an endemic species, but it was later observed that the sharks were able to jump up and down the rapids of the freshwater San Juan River (which connects Lake Nicaragua and the Caribbean Sea) like salmon. https://en.wikipedia.org/wiki/Lake_Nicaragua#Lake_ecology GrumpyWendigo September 29, 2019 at 10:17PM

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