Every year, I pick my favourite science features—or ‘longreads’, as they have been rebranded as—from the previous 12 months. It’s always hard. Despite much hand-wringing about how the internet is killing journalism/reading/attention/civilisation, I see a constant stream of great long pieces, written by writers who are at the top of their game, and published by organisations willing to pay well. So, without further ado, here are my favourite dozen from the year, and a dozen more runners-up. In no particular order:

“That fall, Bertrand was rushed to the emergency room after suffering a series of life-threatening seizures. When the technicians tried to start an I.V., they found Bertrand’s veins so scarred from months of blood draws that they were unable to