Just like people, the simple nematode worm Caenorhabditis elegans is driven to consume high-calorie food when its cannabinoid receptors are activated, hinting at a common signalling pathway for preventing starvation

The fluorescent green dots in this nematode worm reveal neurons that respond to cannabinoids
Stacy Levichev/University of Oregon
Nematode worms seek out high-calorie food after they consume a canna…