Roughly half of all frog species have a life cycle that starts with eggs laid in water, which hatch into aquatic tadpoles, and then go through metamorphosis and become adult frogs. The other half ...

The tree frog family Hylidae contains a diverse array of colorful species. Frogs incapable of color change are termed monochromatic; those that do change color at some point in their life cycle ...

frogs’ multiple life stages. “They start as tadpoles with tails for swimming before developing legs that let them jump, crawl or swim,” Zhao continued. “We take inspiration from those ...

the males have already begun to produce sperm and are "essentially mature," and the females have eggs in development — which normally happens in the juvenile frog stage of the life cycle.

These advantages may explain why the typical frog life cycle has been maintained for more than 220 million years among thousands of species," said Professor Wiens.

Students should have access to tactile models and overlays of the different stages in the life cycle of frogs, dragonflies and butterflies before viewing the Metamorphosis: Change of Plans video. The ...