Bryn Nelson's extraordinary book asks why we let a vital natural resource, human faeces, get flushed away when we could be using it to heal guts, improve soil and understand our past
From work by Indigenous musicians to songs from a sci-art pioneer, the Global Music Vault is open for business as a cultural equivalent to the Svalbard Global Seed Bank
Around 23 million years ago, North America's sabre-toothed cat-like animals disappeared, leaving the continent without felines for several million years. Now palaeontologists are solving the mystery of this "Cat Gap"