Planarians are the species of Earthworm who can survive in less oxygens in the environment.
Lake Walker are the water species which can survive without oxygen for a long time by consuming hydrogen sulfide.
Elegans absorb the metabolism by switching it in the low oxygen environment which helps them survive.
Zebrafish can easily survive in serious situations because they save it in their early developmental stage.
Guinea Pig is a species of land animals who can survive with low oxygen levels in the survival period of life.
Sea cucumbers can survive the no oxygen area by reducing their metabolic rate of the body.
Tardigrades are also known as the water bears; they can survive in extreme situations because they store the oxygen with them.