The ultimate guide to invertebrates, with key biological themes to show a wide range of species.

Rutting deer and flirting love birds might be what we think of with animal courtship, but even bugs need to breed, and they face all the same challenges of winning a mate and raising their young. Some display, some caress, others fight. There are even insects that care for their young.

Breeding

Few creatures have complex levels of regimented society as social insects. Bees, termites, ants, and wasps can form armies to help them build elaborate homes, defend their territories, grow their own food, raise their young and hunt their prey.