Scientists have discovered a new species of green anaconda in the Amazon in Brazil.
A video that you can watch at the top of this article shows Dutch biologist Dr Freek Vonk swimming alongside a 26-foot southern green anaconda (Eunectes murinus).
The newly discovered species is the northern green anaconda (Eunectes akayima). Credit for the discovery goes to 15 scientists from nine countries. Vonk co-authored an academic article about the discovery.
Vonk said while the species of giant anacondas look identical at first glance, there is a significant 5.5% genetic difference between the two.