The female deposits her eggs into a pouch on the male's belly, where he fertilizes and broods them for several weeks. The pouch works a bit like a womb, regulating the environment and supplying the embryos with oxygen and some of their nutrients. When labor comes, the male pumps out anywhere from dozens to more than a thousand tiny seahorses.
In 2022, a young tagged bar-tailed godwit flew from Alaska to Tasmania in about 11 days of nonstop flight, covering 13,560 km without eating, drinking or landing. Before departure, these birds pile on huge fat reserves and shrink their digestive organs, which are useless during the journey.
To escape rivals, a dung beetle rolls its ball of dung in a straight line. At night, it holds its course using the glowing band of the Milky Way. In a planetarium, researchers showed that beetles rolled straight under a starry sky but wandered aimlessly when the galaxy was switched off. It was the first animal known to navigate this way.