Comparing the distributions of extant African primates …
タグ: Juichi Yamagiwa
Despite their larger brain, humans have a smaller gastrointestinal tract
Aiello and Wheeler (1995) compared the weight and gastr…
The birth of “family” and “sympathy”
This rapid somatic growth may have caused physical and …
Differences in fallback foods between the two species
Yamagiwa conducted his study of sympatric apes in Kahuz…
Face-to-face communication is common in hominidae
Like gorillas, other great apes such as chimpanzees, bo…
Issues with the social evolution model
Neither Itani’s social evolution model nor the Western …
The “expensive tissue” hypothesis
It was meat consumption and cooking that made encephali…
Gorillas move, chimpanzees stay
The gorilla group used their wide home range area relat…
Obstacles to the understanding of human society
At the end of 19th century, some social scientists misc…
The expansion of violence
According to the phylogenetic analysis by José Gómez et…