Finding your feet 👣 Over 500 million years ago, flecks of food drifting on ocean currents were eaten by small animals on the seabed, but the flow would often change. To reach them, some tried a pioneering action: they would move. These are thought to be some of the first animal tracks on Earth. Find out where to watch Evolution via the link in our bio 🔗💚 #Evolution #ChrisPackham #Nature