Hitching a ride

In Claude Combes’s The Art of Being a Parasite (University of Chicago Press, £16/$25) you’ll find a hidden world of some of the most bizarre animal behaviour. Watch out for projectile mites that launch themselves at their prey like missiles. You’ll also learn why some Pyrenean frogs become parasite targets and some don’t, how parasites drive evolution, and why a complicated life is better for fish tapeworms.