For instance, many deep - sea fish
harbor symbiotic bacteria that emit light, which the fish use to signal other members of their species.
(Eukaryotes, on the other hand, frequently
harbor symbiotic bacteria.)
Not exact matches
Their bodies
harbor a
bacterium that helps them turn plant sap into usable nutrients, and this
bacterium itself
harbors an even smaller
bacterium, creating a three - tiered
symbiotic relationship that hasn't been observed in any other animal.