Chlamydomonas

One to(o) Many

Multicellular Evolution Theory Recently, a study showed that Chlamydomonas were capable for multicellular “evolution” when under predatory pressure. Basically, scientists set loose some hungry Paramecia into Chlamydomonas territory and things got stressful. I wanted to write a post about this because 1) you’ve seen videos and pictures of these microorganisms before and 2) it’s important to straighten out some misunderstandings about the results. Strength in Numbers Under the threat of predation, Chlamydomonas, usually flagellated and single-celled, will begin to form multicellular structures. Even after the threat was removed, they remained “multicellular”, though I prefer to call them “advanced colonies”. There…