The existence of mysterious tribes made entirely out of tall, blond Europoid individuals in the middle of the impenetrable Amazon rainforest makes the acurinis a worthy addition to this list. In modern times, the first contact with this elusive tribe occurred in 1977, near the springs of the Araguaya river, where an Anglo-Brazilian expedition found itself surrounded by tall, blond, naked individuals who spoke a dialect unlike any of those spoken by Indian tribes. In 1979, there was another brief encounter with the acurinis, the members of this second expedition being shocked by the stature and pigmentation of the tribe’s members.
One might ask: why isn’t there more data about these elusive people? One possible answer could be that the Brazilian government is trying to deny and cover up their existence, so that they can continue seize the land of Indian tribes without the world paying all that much attention.