Not always, usually it’s an evolutionary arms race though. Recent paper I thought was really cool suggests the initial jump from single to multicellular happened because of a snowball Earth which changed the water temperature and therefore viscosity, making larger size equate to more efficient swimming.
Not always, usually it’s an evolutionary arms race though. Recent paper I thought was really cool suggests the initial jump from single to multicellular happened because of a snowball Earth which changed the water temperature and therefore viscosity, making larger size equate to more efficient swimming.
https://www.journals.uchicago.edu/doi/10.1086/716634