Africa: Early Mammals Weren’t All Loners, As Scientists Thought – Some Already Lived in Pairs Alongside the Dinosaurs
About 200 million years ago, furry little egg-laying creatures evolved the ability to feed their offspring with a secretion from some special glands: milk. Their evolutionary journey continued and by about 160 million years ago, the first mammals with a real placenta had come into being. Instead of laying eggs, they gave birth to live…