Saturday, July 11, 2026
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The Record Holder: The Antarctic glass sponge (Scolymastra joubini) holds the Guinness World Record for the longest-lived animal species, with a large 2-meter-tall specimen in the Ross Sea estimated to be around 23,000 years old.
Friday, July 10, 2026
2026.0710.0001-Friday...
Not a Plant, Not a Sheep… It’s a Photosynthesizing Slug!
But it’s dressed like a plant… and powers itself like one, too.
Meet the Leaf Sheep (Costasiella kuroshimae) — one of the smallest and strangest marvels of the sea.
Barely the size of a grain of rice, this creature has black ear-like tentacles, bead-black eyes, and a back covered in tiny green “leaves.”
Those aren’t leaves at all — they’re cerata, filled with stolen chloroplasts from the algae it eats.
Through a process called kleptoplasty, the Leaf Sheep turns sunlight into energy, making it one of the few animals on Earth to photosynthesize.
Its leafy camouflage hides it among seaweed while its stolen solar cells fuel its day.
Drifting through warm Indo-Pacific reefs, it grazes on algae like a tiny sheep of the sea… except this one runs on sunlight.
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