- casualSTEM
- Posts
- Tardigrades' Secret to Avoiding Microplastic Ingestion
Tardigrades' Secret to Avoiding Microplastic Ingestion
STEM Snacks

casualSTEM delivers brief and informative summaries of the latest science news every Saturday. Full of jokes, silly polls, and a cartoon!
Get the weekly email that explains science in sweatpants. Stay smart for free.


image created by Steve Burgess with chatGPT 4o
Plastic-proof
Tardigrades read last week’s issue and added to their long list of impressive features. Of 5,600+ tested meiofauna, water bears are the only ones that do NOT ingest microplastics.
Tardigrades = micro-animals that survive in extreme environments
Meiofauna = tiny marine invertebrates
Microplastics still stuck to tardigrade bodies
Researchers believe tardigrades’ unique feeding structure allows them to avoid accidental consumption by piercing prey rather than ingesting it whole. Time to start eating with toothpicks!
Reply