The Scientist spoke with marine biologist and barnacle researcher John Zardus about why turtle barnacles—previously thought to be immobile—in fact slowly travel. He thinks the answer is food.
This evolutionarily ancient fish species has a lifespan that’s around five times longer than previously thought, and a gestation time of more than five years.
The cephalopods resisted temptation for up to 130 seconds to earn their favorite food, hinting at sophisticated cognitive abilities such as planning for the future.
Rather than making its own light, a shallow-water marine fish gets all the tools that it needs for bioluminescence production from eating tiny, glowing crustaceans.