Researchers on Monday said they found the first animal out of millions of known species that can survive its entire life without oxygen. The Henneguya salminicola (H. salminicola) normally lives in ...

The single-celled ciliated organism Tetrahymena uses a different set of proteins for respiration from plants, animals or yeast, a new study shows. The findings reveal unsuspected diversity in how ...

The ocean's smallest engineers, calcifying plankton, quietly regulate Earth's thermostat by capturing and cycling carbon.

Tetrahymena, a tiny single celled-organism, turns out to be hiding a surprising secret: it's doing respiration -- using oxygen to generate cellular energy -- differently from other organisms such as ...