6. The Role of Moisture in Respiration
Moisture is essential for amphibian respiration through the skin. Their mucous glands secrete fluids to keep the skin damp, enabling efficient gas exchange with the environment. This dependence on moisture limits amphibians to humid habitats such as wetlands and rainforests, where their skin won’t dry out. It’s a critical factor shaping their distribution around the world and highlights their sensitivity to environmental changes. Read more