If you weren’t already charmed by catfish, here’s another reason you should be.
In the wild, catfish lead elusive lives, evading detection from scientists hoping to learn more about their lifestyles. And so, when police received reports of weird catfish clumps at the bottom of a waterfall, they immediately contacted a team of scientists to do some detective work.
After watching the fish for about 20 hours, the researchers arrived at the conclusion that these Rhyacoglanis paranensis—an orange-and-black species of bumblebee catfish common to South America—were scaling steep, vertical waterfalls as a team. A paper published August 8 in the Journal of Fish Biology records this bizarre yet remarkable moment.
