While water is a crucial element in every frog's survival, not all frogs live as close to the water as we tend to think.
Some frogs live in dry savannahs and scorching deserts. They survive long dry periods by limiting water loss and hiding from heat – a practice called aestivation.
Many, like the African bullfrog, cover themselves in a cocoon of dead skin. This parchment-like cocoon reduces water loss by 50 percent.
Others give themselves a rubdown with a waxy secretion.
But most desert frogs hide from heat by going underground – sometimes for years!
Spadefoot toads are expert diggers. Their shovel-like feet allow them to dig as much as 6 feet beneath the ground.
