As I have argued before, one key to the success of bacteria-as-terraformers is their ability, as single-celled organisms, to network with each other both physiologically and genetically. Well, recent evidence strongly suggests that such connections also include charitable behavior, where certain cells come to the aid of their neighbors:
Humans are capable of great charity, taking hits to their bank accounts and bodies to benefit their peers. But such acts of altruism aren’t limited to us; they can be found in the simple colonies of bacteria too.
Bacteria are famed for their ability to adapt to our toughest antibiotics. But resistance doesn’t spring up evenly across an entire colony. A new study suggests that a small cadre of hero bacteria are responsible for saving their peers. By shouldering the burden of resistance at a personal cost, these charitable cells ensure that the entire colony survives.
Read the rest about this eye-popping study here.
Hi Mike,
It appears scientists have found genes for usung oxygen appeared before there was oxygen-
The hypoxia-inducible transcription factor pathway regulates oxygen sensing in the simplest animal, Trichoplax adhaerens
and
Evolutionary origins of oxygen sensing in animals
Thanks!