Bryan Walsh, a top science journalist and TIME editor, believes that mushrooms will be the key to survival for humans post asteroid impact.

Walsh made these remarks on his new book 'End Times' that examines how apocalyptic events like asteroid hits, nuclear explosions and volcanic eruptions will threaten the existence of humans.

He maintains that humans will be compelled to embrace sunlight free agriculture, cultivation of mushrooms, consumption of rats and insects to survive during catastrophic events.

It should be noted that Walsh got the idea of mushroom cultivation from an author named David Denkenberger who wrote the post-apocalyptic book 'Feeding Everyone No Matter What'.

"Maybe when humans go extinct, the world will be ruled by fungi again. Why don't we just eat mushrooms and not go extinct?" Denkenberger told Walsh.

Even though mushrooms will not be adequate enough to feed a large number of people, Denkenberger believes that it will be sufficient to ensure the survival of a small post-disaster population