Empty seashells became the ocean’s first ready-made homes 470 million years ago, helping create an entirely new ecosystem

Approximately 470 million years ago, ancient mollusc shells started to serve as habitats for small sea creatures, initiating a profound ecological transformation across global ocean ecosystems. These ...
The Conversation

What is medicine? Why it’s so important to answer this question

Is medicine cure? Treatment? Healing? Understanding? Or a bit of all those things. Kenishiroti/Shutterstock What is medicine? We recognise it in all societies past ...