07/31/2025
West African lungfish is genuinely one of nature’s most astonishing survivalists. During dry seasons when rivers vanish, this fish doesn’t migrate or perish like many others. Instead, it buries itself in the mud, secretes a mucus cocoon, and enters a state called aestivation, a kind of suspended animation where its metabolism slows dramatically. Inside this cocoon, the lungfish breathes air through a small opening near its mouth, relying on its lungs rather than gills to survive.
According to Oxford Scientist, it can remain in this state for months, and potentially up to four years, without food or water, digesting its own muscle tissue for sustenance. This extreme adaptation allows the lungfish to wait out droughts until the rains return and flood its habitat again. It’s a biological pause button that’s still being studied for its implications in evolutionary biology and climate resilience.
