Back to Explorer
Nature Example
View Source →

Amphibians 🐸

A red-eyed tree frog.
A red-eyed tree frog.
Credit: Wikimedia Commons. Click here for the license
Skeleton of a frog
Skeleton of a frog
Credit: Wikimedia Commons. Click here for the license
  • Structure: They have smooth, moist skin with no scales, fur, or feathers. They typically start life with gills and later develop lungs. Many, like frogs, have powerful hind legs for jumping.

💡 Fun Facts

  • Skin: An amphibian's skin is permeable, meaning it can absorb water and oxygen directly through it. This is why they must live in damp environments to avoid drying out.
  • Lungs: Even after developing lungs, many amphibians continue to get a significant amount of their oxygen through their skin.
  • Life Cycle: The change from a gilled, water-dwelling tadpole to a lung-breathing, land-dwelling frog is a complete rebuilding of the body called metamorphosis.