
Is Gender Unique to Humans?
Evidence from our closest evolutionary relatives suggests that we might not be the only animals with a sense of gender identity.
Evidence from our closest evolutionary relatives suggests that we might not be the only animals with a sense of gender identity.
Nonhuman primates clearly do more than just screech meaningless sounds at each other, but what are the limits of their communication?
To protect animals with highly developed cognitive and emotional capacities, we need to start by changing our point of view.