Same-sex behavior is common across the animal kingdom—more than 1,500 species are estimated to have been observed engaging in same-sex behavior, from spiders and nematodes to bonobos and fish. Still, ...
Previously, we examined the remarkable disparity between the intellectual capacities of human beings and primates. While our closest relatives, the chimpanzee, possess traits and characteristics that ...
Suggested Citation: "Front Matter." National Research Council. 2003. Nutrient Requirements of Nonhuman Primates: Second Revised Edition. Washington, DC: The National ...
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