By Afiur
March 24, 2026
This fish has a transparent head, allowing you to see its internal eyes. It can rotate its eyes to look upward through its skull.
Often called the “world’s ugliest fish,” this deep sea creature looks gelatinous out of water but appears more normal in its natural high pressure habitat.
Despite its small size, it has disproportionately large, sharp teeth. It’s one of the most fearsome-looking deep sea predators.
Almost completely transparent, you can see its bones and organs. It looks like a ghost swimming in the water.
Resembling floating seaweed, this fish uses its leafy appendages for camouflage. It’s both beautiful and incredibly hard to spot.
Known for its vibrant, psychedelic colours, this small reef fish is one of the most visually stunning species underwater.
Famous for its bright red lips, this fish “walks” on the ocean floor using its fins instead of swimming much.
This aggressive fish has a massive mouth and territorial nature. It opens its mouth wide to scare off rivals.