5 Amazing Feats of Animal Engineering

You might consider humans or beavers to be the best engineers on the planet, but these 5 other animals go to great lengths to put our houses and dams to shame.
Chapters
SOCIABLE WEAVER
0:38
GREAT BOWERBIRD
2:13
PUFFERFISH
3:39
4 ORIENTAL HORNETS
5:53
PRAIRIE DOGS
7:32