11/12/2025
This fuzzy mouth is slurping up algae in slow motion. In real time, it’s just two seconds.
The creature is an Aeolosoma, a tiny polka-dotted worm feeding on boat-shaped algae. They’re common in water and even show up in plant trays.
Aeolosoma glide with slipper-like mouths, sucking in food as they go. Hair-like structures around the mouth help them move and guide food inward.
I used to think they ate everything by accident, but after years of watching, I’m sure they can control what goes in.
This one was devouring diatoms so fast I had to film it in slow motion. Tracking a one-centimeter worm at 400x magnification is wild.
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James Weiss