How do we convince people that humans aren’t so different from non-human animals? By proving they can’t tell the difference between the cry of a human baby and the cry of other non-human babies. Research shows empathy arises in humans because emotions are expressed in vocally similar ways among mammals. Mammals instinctively respond to a cry because it is more advantageous to respond to anything that resembles a baby's distress call. We played the sound of a crying baby lamb over a hidden speaker from a stranded bassinet. When passersby looked inside, they found a reminder that our instincts don't discriminate whose cry we respond to, especially because of their species.