Intracellular endosymbionts that originally descended from free-living prokaryotes have been important in the evolution of eukaryotes by giving rise to two cytoplasmic organelles. Mitochondria ...

The latter are natural endosymbionts of another Rhizopus fungus. For the experiment, however, the researchers used a strain ...

Through co-evolution over countless generations, the endosymbionts eventually become an organelle called the mitochondrion. These stripped-down vestiges of their former bacterial selves evolved to ...

Ticks – small, spider-like creatures with six or eight legs and as small as a pencil point that feed on the blood of dogs, ...