Forgotten fossils hold clues to how ancestors of mammals cared for their young: We all know that mammals protect and care for their young. In some cases, they also live within complex social groups. Was this always the case? The skeletal anatomy of mammals’ early ancestors has been studied for more than 150 years. But until relatively recently, not much was known about their … [Read more...] about Forgotten fossils hold clues to how ancestors of mammals cared for their young | The Conversation