“The study contributes another piece of the puzzle to the question of how the mental abilities of humans and other animals differ, and why only humans speak languages, plan space travel, and have learned to exploit the earth so efficiently that we now pose a serious threat to countless other life forms”, says Johan Lind, associate professor in ethology and deputy director at the Center for Cultural Evolution, Stockholm University. Since September also associate professor of ethology at Linköping University.

All right, this might be a somewhat controversial take, but I’m gonna have to say that the reason horses don’t plan space travel is because they haven’t approved funding for a space program. Once that gets cleared up, I’m open to other possibilities.