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Blood Flow in a Fin

This award-winning video shows blood flowing through the tail fin of a small fish. Cells flow outward in a central vessel, then split to either side for the return journey. (Video and image credit: F. Weston for the 2023 Nikon Small World in Motion Competition; via Colossal) Read the full article

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Daily fish fact #497

Tripod fish!

Their name comes from their tendency to rest completely still on their elongated fins, giving them the appearance of a tripod! When they’re still, their fins appear stiff, but interestingly, when the fish are actually swimming they seem flexible; this had lead to some theories that the fish may pump their fins full of fluids to make them stiff but they’re otherwise quite bendy.

Tomopterids, the ethereal glow worms of the deep 💡🐛

Tomopterids are marine planktonic polychaetes—commonly known as Gossamer Worms — that swim in the water column, never touching the seafloor. Growing anywhere between 1 cm and 30 cm long. They are also one of the very few marine creatures that can produce yellow light, spewing their bioluminescence to scare off predators

Love to sea it 🌊

Help by Hamza Kulenovic

Gloomy Wetland

by Natan Vance