Disentangling the evolution of cognition: Learning in Cnidaria.

Bielecki et al. Current Biology, 33, 4150-4159, (2023) described new behavioral and physiological paradigms to study associative learning and its neural basis in the Cnidaria Tripedalia cystophora. We discuss the relevance of these findings to further our understanding of the intertwined evolution of cognition and the nervous systems.