When I grew up I loved watching nature shows on TV (and I still do). My dad is a science teacher and used to tape all the good shows. I especially remember David Attenborough coming closer to animal life than anyone I had ever seen. The Velvet Claw made a big impression as did The Living Planet.
I also remember well another show hosted by Desmond Morris, called The Human Animal. I remember how his most famous book, The naked ape was always part of the bookshelf at home and I watched the show over and over.
Great show and recommended viewing here.