Marine iguanas have lower metabolic rates during El Niño

Marine iguanas of the Galápagos (Amblyrhynchus cristatus) are the only lizard species in the world that feeds in the ocean, relying almost exclusively on algae. During the El Niño climate event, rising ocean temperatures reduce the availability of this food source, leading to periods of scarcity. This research examines how these climatic changes affect their physiology and body condition.