Animal adoptions make no evolutionary sense, so why do they happen?
Scientists used to think that humans are special because we have larger brains than other animals. However, some experts in human evolution have suggested that it isn’t how we think that makes the difference, but how we feel. They suggest that humans may have evolved to be kinder to one another, or at least to suppress their tendency to lash out in anger.
Erthygl gan The Conversation nad yw ar gael yn y Gymraeg