By chosing temporary ponds instead of deep permanent ponds, Tree Frogs reduce the number of predators that may eat the tadpoles.
(Tree Frogs; reduce; the number of predators that may eat the tadpoles) (the number of predators; may eat; the tadpoles)
Tree Frogs the number of predators
reduce may eat
the number of predators that may eat the tadpoles
the tadpoles