This unicellular organism separated from the animal evolutionary line more than a billion years ago, offering valuable insight into the mechanisms that may have led to the transition to ...

The discovery of a billion-year-old fossil in Scotland offers exciting new insight into animal evolution, BC researcher says Loch Torridon in Scotland, where the microfossil was discovered. Photo: ...

How does multicellularity evolve? Scientists who study a family of green algae that includes unicellular Chlamydomonas and multicellular Volvox are beginning to find answers to this question.

However, if food becomes scarce, the unicellular organisms aggregate to form multicellular structures that allow for the generation and dispersal of spores.