Lungfish withstand drought by burrowing in mud, entering estivation and significantly slowing their metabolism to conserve energy for survival.
Penguins can fast for months during harsh winters, with males incubating eggs on ice, relying on fat reserves to ensure offspring survival.
These venomous lizards have slow metabolism, survive months without food by relying on fat stores and large meals.
Desert Tortoises thrive in arid environments by slowing metabolism, entering estivation, conserving water with domed shells. They store water in their shells.
Arctic foxes thrive in extreme cold with thick fur for heat retention and a slow metabolism. They can survive weeks without food, depending on stored fat reserves.