
African Lungfish Survival Out of Water
Biological adaptationAbout
African lungfish possess remarkable adaptations that enable them to survive out of water for extended periods. When their habitats dry up, they secrete a thick layer of mucus around themselves, forming a protective cocoon. This cocoon not only shields them from dehydration but also allows them to breathe air through a small opening, utilizing their lungs for respiration. The lungfish can live in this state for up to a year, relying on stored energy from their muscle tissues. During this dormant state, known as aestivation, the lungfish significantly reduce their metabolic rate, allowing them to conserve energy. This adaptation is crucial in environments where water is seasonal, enabling the lungfish to survive until water returns. Their ability to aestivate highlights their resilience and unique physiological traits, making them fascinating subjects for study in both biology and ecology.