Photo from Peter Schuchert's incredible Hydrozoa Directory
The Turritopsis nutricula is known as the "immortal jellyfish" because even once sexually mature, it can revert back to its polypoid stage, its first life stage. And then rinse and repeat. Again and again. From Mother Nature Network:
Because they are able to bypass death, the number of individuals is spiking. They're now found in oceans around the globe rather than just in their native Caribbean waters. "We are looking at a worldwide silent invasion," says Dr. Maria Miglietta of the Smithsonian Tropical Marine Institute.
"The world's only immortal animal" (Thanks, Andrea Mangini!)
Colored sand, a Chladni plate, and a little Bach make for a very soothing demonstration of cymatics.
PolyGlu is used by aid workers to force impurities in water to settle at the bottom of a container, making the water safer for drinking in areas where water is scarce or polluted.
“Are wormholes real or are they just magic disguised as physics and maths?” (Kurzgesagt – In a Nutshell)
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