Genetic memory

Genetic memory, also known as ancestral memory, is the theory that within our genes lay past knowledge from our ancestors. Though we can not prove this with current technology there are lots of hints towards it.

When a shark is born, it is not raised by any other sharks. It instinctually knows how to survive and even knows what fish are poisonous. This is one theory that can be found in everyday life that points to genetic memory being possible.

Another good point is that some memories and knowledge from past generations could be skills. People could learn about something for the first time and have no prior knowledge of it, and yet, are very good at it.

Languages could also be put through this debate. Many people are very good at learning a new language while others aren't. Perhaps people who have "previous" linguistical knowledge are better at learning languages and others who have only spoken one language for generations have a harder time learning a new one.