共生：生命起源的新视角

A radical new view of life could reveal how it started on, and even beyond, Earth, finds Rowan Hooper WHEREVER you are reading this, look around you. Every living thing you can see – other people, pets, birds flying past, trees, flowers, mushrooms, fish – is here because of unions between different species. Classic cases are lichens (typically formed of algae and fungi) or corals (made of algae and animal components), but these examples underplay just how far and deep symbiosis goes. Complex life – all those things you see around you – exists only because of a deep form of cellular symbiosis, and all plants rely on symbiosis to grow and to produce all the food we eat. …