567 million years ago, strange soft-bodied animals began moving across the deep seafloor in what is now Canada, with Dickinsonia feeding through its underside despite having no mouth, pushing animal m

The fossil assemblage also includes Funisia, a stationary, tube-shaped organism found living in clusters. Researchers interpret these clustered fossils as evidence of an early form of sexual reproduction, potentially involving coordinated release of reproductive cells into seawater. If that interpretation holds, the fossils offer an extraordinarily old glimpse into reproductive behavior.