Is jellyfish intelligence a superpower? Marine biologists show these soft-bodied sea animals learn to navigate through mangrove roots. But a memory is not their only hidden talent.
Behold the misunderstood genius of the sea
Spineless: Sea jellies are not fish but plankton that drift on the ocean currents. Glossary
Neuroscience - Science looking at the nervous system and the brain.
Dementia - A syndrome associated with memory loss and other declining brain functions.
Nervous system - The brain, spinal cord and network of nerves sending messages between the brain and the body.
Primordial - Existing at or from the beginning of time.