If you're going to try "tattooing" a microscopic animal, it would make sense to select one of the toughest creatures on the planet. That's exactly what scientists have done with the tardigrade, and ...

A model of a tardigrade at the American Museum of Natural History in New York. Tardigrades turn out to be masters of molecular repair. Tardigrades are a reminder that even the smallest creatures can ...

I last wrote about extremophiles—creatures that thrive in environments that are extremely hot, cold, salty, acidic, alkaline, radioactive, and so forth—not just because these critters are interesting ...

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