https://books.google.de/books?id=SuM-AAAAYAAJ&pg=PA49&lpg=PA49&dq=h%C3%A4ssliger+sch%C3%A4del&source=bl&ots=SKgRMbXTxe&sig=YBiNFvxejpK4_IAzHR486jSICcs&hl=de&sa=X&ved=0ahUKEwiKx_684-zUAhUCYVAKHby7BMoQ6AEIVTAJ#v=onepage&q&f=false
UNFORTUNATELLY this book is only available in german language, since im not familiar with english versions.
BUT Dr. Friedrich Heinemann from the Heidelberg University objectivly proves that black people CLEARLY are different from Europeans and that black people have a lot of similarities to Orang Utan.
why do so many people still propagate that black people are human beings ?
yeah ! They are similar to us ... and Bonobos and Chimpansees are also similar t us , they even have consiousness and use tools. still the are not humans.
who is behind this propaganda ?