How well can we understand what’s going on in the brains of non-human animals? Do our pets — like dogs — have the same feelings we do? How smart are animals really? Neil deGrasse Tyson hosts.

How well can we understand what’s going on in the brains of non-human animals? Do our pets — like dogs — have the same feelings we do? How smart are animals really? Neil deGrasse Tyson hosts.