The females lay 180 to 300 eggs at a time. Most frogs can lay eggs either on land or in water but not both. However, the hourglass tree frog can lay eggs on both. If the pool is in the sun, the female frog will lay her eggs on a piece of plant under the surface of the water so that they don't dry out. If the pool is in the shade, she will lay her eggs near the water so that the tadpoles fall into it after they hatch. For example, she may lay her eggs on a leaf on a branch hanging over the water. If she lays eggs in the water, fish might eat them. If she lays eggs on a leaf, wasps, ants or spiders might eat them.