A Clever Robot Spies on Creatures in the Ocean’s ‘Twilight Zone’

Good News Notes: “THE GRANDEST MIGRATION on Earth isn’t the journey of some herbivore in Africa or a bird in the sky, but the vertical movement of whole ecosystems in the open ocean. All kinds of animals, from fish to crustaceans, hang out in the depths during the day, where the darkness provides protection from predators. At night, they…