A blastoporal organizer in a ctenophore

Nature, Published online: 17 June 2026; doi:10.1038/s41586-026-10643-z
Experiments using the comb jelly Mnemiopsis leidyi and the sea anemone Nematostella vectensis reveal that the emergence of a core signalling pathway may have been a key innovation enabling the transition to multicellularity in animals. ...