Gut microbe may challenge textbook on complex cells

Mitochondria go missing in cell found in chinchilla droppings

Monocercomonoides

SMALLEST LOSER  This gut microbe, known for decades, may change the way textbooks describe complex cells: It appears to be missing mitochondria.

Naoji Yubuki

A gut microbe collected from chinchilla droppings might be the first complex life form to lack even a shred of a supposedly universal organelle.