Animals must, for example, be able to build a nest, explore their world or root in the soil.
(Animals; must be; able to build a nest, explore their world or root in the soil) (Animals; to build; a nest) (Animals; to explore; their world or root; L:in the soil)
Animals Animals Animals
must be to build to explore
able to build a nest, explore their world or root in the soil
a nest
their world or root L:in the soil