@snowflakeeel U in a previous post wanting a yawning feesh
@why-animals-do-the-thing this is exactly what it looks like. That fish, which I think is a giant gourami, is doing its aggressive display back at the guy outside the tank. It probably thinks it’s winning, since he’s moved back.
It hides it’s deceit as it grows. Under its lemon exterior it is only muscles and hate
See that little white line on the adult’s tail? That’s a tiny knife made out of bone. There’s one on each side, and the knives can be used to cut competitors and potential predators.
The New England Aquarium education staff frequently talks about how intelligent and trainable lumpfish are, but man, this video really brings it home. I’ve seen fish trained to swim through hoops before, but the spin behavior is really cool (and the super retro music definitely set the tone of the entire video).
For anyone concerned: mollies are actually brackish water fish, and they can be acclimated to either freshwater or saltwater. They’re great in marine tanks because they’re one of the few readily available fish that will eat algae without eating your corals, plus they’re small and not terribly aggressive.
Look at the eyes on the deep sea fish IPNOPS. They’re some of the most modified eyes ever known in a vertebrate. It’s basically lost “eyeballs” in favor of huge, concave lenses, perfect for gathering even the faintest light, possibly used to hunt bioluminescent invertebrates.
I’ve known about these since drawings of them when I was little but I never saw such clear photos of a living one before.
NOAA Okeanos Explorer Program, Gulf of Mexico 2012 Expedition. License: CC By Attribution
These are photos of baby Spotted Drums! Here’s an adult:
This is a great example of negative space making a fish look bigger. The super long dorsal fin on baby spotted drums gives predators the impression that the fish has much larger body than it actually does.
BettSplendens Tumblr Evac 