When it comes to social interaction, the chimpanzees appear to be just as intelligent as we are.

We justify the inequalities by saying some people are just better and smarter than others and the strong should survive and the poor can die off.

When it comes to social interaction, the chimpanzees appear to be just as intelligent as we are.

In Africa, we have the bush meat trade, which means that, on a very large scale, animals are being killed in the forests and sold in the cities as a luxury food.

I think we need to start thinking about grounding our moral systems in our biology.

Although elephants are far more distantly related to us than the great apes, they seem to have evolved similar social and cognitive capacities.

Empathy probably started out as a mechanism to improve maternal care. Mammalian mothers who were attentive to their young's needs were more likely to rear successful offspring.