Primates again :)

I have been reading quite some news about Gorillas, recently i read one paper that talks about studies that has recorded tool usage by a female gorilla and populations of lowland gorillas seemingly surviving in more than expected numbers (Dian Fossey Gorilla Fund International says so). Looks like they are identifying new groups (or troops?) of Grauer's Gorillas which are worth identification.. Good then... I was reminded of this cartoon when i read the news about Tool usage by Gorillas... I am trying to get hold of Gary Larson's from National Library...hmph... in vain.