Did you read that article on Live Science? They have found that some blind people, not all, can echo locate like bats! Amazing! I find this shit fascinating. Coming from me, a woman with the shortest attention span ever. Isn't that something though? Humans that can echo locate is another step up the evolutionary ladder. They are also in the process of trying to find out if non-blind humans are able to echo locate. Wouldn't that be cool. That's like a Batman skill without the use of gadgets. Awesome!!!