LifeAn engrossing history of teeth shows their complex role in evolutionFrom birds and bats to horses and great apes, Bill Schutt's seriously fun history of teeth, Bite, explains their role in both shaping evolution and our understanding of itCulture
PhysicsTime travel sci-fi novel is a rip-roaringly good thought experiment An ordinary-looking valley has a secret – each of its neighbours is 20 years removed in time. Scott Alexander Howard's debut is heartfelt and deeply enjoyable, says Emily H. WilsonCulture