Indra is similar to Zeus in that they are both sky gods and have lightning as a weapon. They both live in their own little world, in the case of Zeus it is Mount Olympus and for Indra it is Mount Meru, where only the gods can stay. Hades and Yama are both gods of death and the afterlife, but while Hades literally rules the underworld of earth, Yama's underworld, Naraka, is in an entirely different dimension. Poseidon's double is Varnus or Vedic who is also the god of the Ocean. The list goes on and on as there are many gods similar in identity and roles. Experts like Adrienne Mayor believe that the mythological stories are based on the fossils found. Mayor states in an interview: “There is also a lot of natural knowledge wrapped up in these myths, demonstrating that the Greeks' perception of fossils was quite surprising to prescientific populations” (“NY times”). The mayor then goes on to explain how she came to this conclusion. He uses the story of Heracles saving Hesione by killing the Trojan monster, “Ms. The mayor pointed out that in the earliest known illustration of the legend of Heracles, painted on a Corinthian vase, the monster's skull closely matched that of an extinct giraffe” (“NY times”). The mayor came to the conclusion that every time the Greeks or Romans found fossils they used them to support an already created mythological story or to create an entirely new one.