Some of the smallest creatures on Earth build structures as complex as ours. Enter the world of Bug Builders, where spiders construct underground lairs, deadly traps, and underwater nests! Find out what we can learn from Bug Builders.Some of the smallest creatures on Earth build structures as complex as ours. Enter the world of Bug Builders, where spiders construct underground lairs, deadly traps, and underwater nests! Find out what we can learn from Bug Builders.