This image was donated by Pearson Scott Foresman, an educational publisher, to Wikimedia Commons, and is thereby in the Public Domain. --- See http://commons.wikimedia.org/wiki/Category:Pearson_Scott_Foresman_publisher djur däggdjur biologi Gorilla
Source: http://commons.wikimedia.org/wiki/File:Chimpanzee_(PSF).jpg djur däggdjur schimpans Schimpans
Source: http://commons.wikimedia.org/wiki/File:Chimpanzee_%28PSF%29.jpg This image was donated by Pearson Scott Foresman, an educational publisher, to Wikimedia Commons, and is thereby in the Public Domain. oskyddad djur däggdjur Gråskala schimpans
orangutan wood cut illustration from 1923 "ABC Book" by C.B. Falls (LCCN: 23002228); http://openlibrary.org/b/OL13440008M orangutang raw djur Orangutang trä Cut
This image was donated by Pearson Scott Foresman, an educational publisher, to Wikimedia Commons, and is thereby in the Public Domain. --- See http://commons.wikimedia.org/wiki/Category:Pearson_Scott_Foresman_publisher djur däggdjur biologi Mandrill