A trio of scientists, one with Universidade Federal do Rio Grande do Sul, another from Museo Historia Natural Noel Kempff Mercado and a third independent researcher, report evidence of several Bolivian river dolphins playing with a Beni anaconda in the Tijamuchi River in Bolivia. In their paper published in the journal Ecology, Omar Entiauspe-Neto, Steffen Reichle and Alejandro dos Rios describe photographs they took of the encounter.
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Source: Phys.org