Yerkes

#	Item
141	PDF Document Add to Reading List Source URL: altweb.jhsph.edu Language: English Apes Animal communication Chimpanzee Primatologists Chimp Haven Animal rights Animal testing Save the Chimps Robert Yerkes Zoology Biology Fauna of Africa
142	PDF Document Add to Reading List Source URL: personality-project.org Language: English - Date: 2005-05-02 15:45:06 Personality traits Psychology Cognitive science Extraversion and introversion Mind Yerkes–Dodson law Arousal