Archaeoraptor, Piltdown Man, Nebraska Man, Cro-Magnon, Neanderthal, Swanscombe, Australiopithecus, Lucy, and Ida. They all have something in common. Each has been hailed by the scientific community as the Missing Linkâ€”â€śa hypothetical form of animal assumed to have constituted a connecting link between the anthropoid apes and humans.â€ť They also have something else in common. Over time, they all have been proven to be embarrassing scientific blunders or outright frauds. Thatâ€™s right. The "Missing Link" that scientists want so desperately to find has never been found.