Looking at these worms is oddly satisfying in a way. They are called Lumbriculus variegatus, a black aquatic worm just half the size of a cigarette. And actually, they act in such an odd way as a defense mechanism, to adapt to their environment.
Tangled up in squishy masses that can be the size of a basketball or bigger, the worms are transformed into a pulsating ball versatile enough to squeeze through tubes, hold together and bounce off surfaces, or spread out or shrink depending on the conditions.
(Video credit: Science Mag)
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worms are creepy yo
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I used to feed my fish these worms! Cool to see that they're actually far more interesting than I originally thought ;)
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