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Environmental Military Police in Brazil witnessed a new skill in bumblebee catfish, a rare species native to South America and Asia, according to Fishlore.

Migrating to spawn

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Footage captured by the Environmental Military Police shows bumblebee catfish swimming up a small waterfall in the Aquidauana River in the central-western state of Mato Grosso do Sul on Nov. 16, 2024.

A team of Brazilian scientists saw the footage and went to that exact spot to study the phenomena and published a scientific article based on this behavior.

The footage shows groups of bumblebee catfish, otherwise known as Rhyacoglanis paranensis , "clustered and slowly moving upstream," the study said.

Some of the videos also captured large numbers of the species piled onto w

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