Alegado suspects that all these substances are a sign that food is near. The choanos are better at catching bacteria as a group than they are on their own, so if they sense bacteria nearby, they unite. ‘I think the choanos are eavesdropping,’ says Alegado. ‘They’re slow swimmers, and the Bacteroidetes are good indicators that they have entered an area with great resources and food. Then, they can commit to making a rosette.’
Interesting. Same idea with NMN.
