I suppose this is more related to ethology than humanity, but it's interesting nonetheless.
http://news.bbc.co.uk/hi/english/world/africa/newsid_1746000/1746828.stm
Malfunctioning instinct, animal compassion, or rational thought?
http://news.bbc.co.uk/hi/english/world/africa/newsid_1746000/1746828.stm
A lioness in central Kenya has baffled wildlife experts by adopting a baby oryx, a kind of small antelope normally preyed upon by big cats.
Reports say the full-grown lioness came across the oryx two weeks ago in the Samburu Game Reserve, scaring off its mother.
Instead of then attacking the defenceless calf, the lioness adopted the baby, protecting it from other predators, including a leopard.
Extraordinarily, the lioness still allowed the mother oryx occasionally to come and feed her calf before chasing her away. But the rule of the wild ultimately prevailed on Sunday when a male lion attacked and killed the baby oryx while the lioness was sleeping.
Malfunctioning instinct, animal compassion, or rational thought?