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 ...

Halalaimus is a microscopic nematode genus commonly found in sediment on the seafloor. It lives 1–5 cm below the sediment surface and grazes on bacteria or organic materials in the sediment. Subscribe ...