To resist the idea that any non-human animals have the capacity for a range of emotions and have the capacity for thinking is not only unscientific, it is to reject evolution altogether.
BBC Radio 4 podcast: The Life Scientific: Frans de WaalFrans de Waal
is definitely one of my favorite scientists. I was delighted to find out
that he confirms (and writes extensively about) something I've learned myself over the years, that you have to be pretty clever to figure out how intelligent other animals are
; and when you do figure it out, you learn a lot about yourself (and other humans) too.