still we're glad that the parents of these cute babies didn't keep their pictures to themselves just look at them testing those lemons. one of our viewers observed a reaction like this in his nephew he's been a doer of from timo in guyana and he sent in a question about it. why do babies put everything in their mouth. no matter what they see in front of them they want to suck it lick it all chew on it even the camera filming them could it be that they're simply hungry. no they don't want to eat the objects they want to examine them and babies can do that best with their mouths. newborns the highest density of sensory receptors