this dude made an aquarium with an artificial mini waterfall for the fish to climb https://www.youtube.com/watch?v=qp0SIJNtIKM
This title had the garden path sentence effect on me.
Can you provide the bracketing??
The catfish were the ones filming.
1) There are species of small "catfishes" (on Asia or Australia if I remember correctly) known to climb waterfalls in rainforests. We are talking about > 100m long fully vertical waterfalls.
2) In fact, they aren't catfishes. Belong to a big family of mainly marine fishes called gobies. Totally different orders. Should be named climbing gobies.
3) They do it for the same reason as Salmons do: to reproduce in freshwater.
4) But unlike salmons they don't swim or jump. They climb the slippery rock wall like a freestyle climber, using the suction cups in their belly that gobies have (pelvic fins transformed), and their other fins and tail to propel
5) Somebody filmed those fishes climbing.
The article says "Rochedo, Brazil" so South American rainforests, in this case.
These species are "restricted to fresh water in South America" source: https://en.wikipedia.org/wiki/Pseudopimelodidae#Distribution
A whole lot of "climbing catfish" were filmed in the act of scaling a waterfall.
Huh, interesting. Doesn't happen much in fusional languages.
Seems they've figured out how to wiggle themselves forward using their tails, then land in a way that creates a suction between their belly and the rocks. Clever.
https://www.researchgate.net/publication/394405635_Bumblebee...
I am unreasonably upset by the tiktok-goofy-jazz music they chose.
For science.org I want something a bit more nature-documentary e.g. a thoughtful classical/ambient soundscape with David Attenborough gentle tones "And here we see...". If seeking to amuse me then go for it e.g. Ride of Valkeries/Rohirrim.
Caveman brain: "That'd be a great spot to sit and just pick up a few fish for lunch."
Catfish is disgusting to eat, at least the ones we have here in Spain, which are sometimes past 50kg.
Me, trying to ship in a waterfall organization
The original title is plural: "Thousands of climbing catfish filmed scaling waterfalls"
The word "catfish" can be singular or plural. I read it as "A catfish was filmed...". But there sure are a lot of those little fish.
> ...researchers also found that the [wet-rock-climbing] bumblebee catfish isn’t alone. Three other fish species were also scaling the waterfalls alongside the bumblebee catfish, and none of the four had ever been documented climbing before.
Being fish, this sounds like convergent evolution. (Vs. learned behaviors.)
They seem to all be fish that live in fairly fast flowing waters, my guess was they are able to use rocks+suction system to hold in place for stuff, they probably don't even really have a concept they are climbing a wall, it could just feel like a particularly intense rapid?