Upside-Down Catfish Doesn’t Care What You Think

by birtanpublished on September 2, 2020

but there is nothing wrong with your television set do not rotate your phone you're looking at the upside down and catfish seven different species live in the Nile and Congo basins of Central

Africa you might expect it to be anatomically different from a regular cat finishing but it's exactly the same so why does this add fish swim all topsy-turvy maybe a better question is how do fish stay right side up in the

First place well they have an internal air sac that they inflate or empty to go up or down it also keeps them upright when they want to rise they draw air from their blood into this swim bladder and release it to sink

This discus fish has swim bladder disease that's why he's having a hard time with which ways up our flipped catfish has a swim bladder too and it can swim like your standard fish if it wants to it turns its belly to the

Nearest surface to pro with its sensory barbels those catfish whiskers so what's the point of being upside down all the time well near the surface of the water fish normally run into a problem called wave drag check out these regular

Catfish this drag happens when their own movement disturbs the water making it harder to swim but if a fish swims like this it doesn't shake up the water as much that lets this upside down or raised without getting so tired and save

Its energy for evading predators there's also more oxygen in the water near the surface so it's easier to breathe and check out how this fish has a dark patch on its stomach it's named negra Ventris means black belly

That's the reverse of most sea creatures from above the dark coloring camouflages the fish helping them blend in with the depths it's called counter shading so for these fish life inverted just feels right and we know they're not the only

Ones who work on the unusual angle whether that's tilted sideways or diagonal sometimes to get by it doesn't hurt to be a little different take another look at this anglerfish scientists at the

Monterey Bay Aquarium Research Institute filmed it way off the California coast at 4,000 feet upside-down surprisingly these beauties usually aren't found alive if you're looking for even more perspectives try above the noise from

KQED and PBS Digital Studios the series that cuts through the hype of today's headlines with science thanks for watching and subscribing to deep look

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