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Mosasaurs weren't dinosaurs, but giant marine lizards, relatives of today's Komodo dragons and anacondas, which ruled the oceans 66 million years ago, during the era of Tyrannosaurus and Triceratops.

A team of scientists on location with a film crew in the remote Amazon has uncovered a previously undocumented species of giant anaconda.

After running the genetic data, they found a clear divide between anacondas sampled in the northern part of the range as opposed to those in the south.

For centuries this landscape, shaped by ancient rivers, has been shared by ranchers and cattle, which learned to coexist with jaguars, panthers, anacondas, electric eels and crocodiles.

In 2021, researchers discovered two female California Condors were able to reproduce without males while two years earlier, a female anaconda got pregnant by herself in a Boston aquarium.