Neanderthals were hunter gathers so utilised a wide source of food. Depending on the season would depend on their main diet at the time.
polar bears main source of food is fish, seabirds and sometimes reindeer
The Cheyenne's main food source is buffalo berry's.
meat
Corn or maize was a primary food source.
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the main source of income in Ontario is clothes and food :P:P:P
main source for food and water
Yes.
Yes, evidence suggests that Neanderthals did hunt and eat woolly rhinos based on the presence of rhino bones at Neanderthal archaeological sites. The rhinos likely provided a valuable food source and resources for tools and clothing.
there is none
mermaids
Fish