But his mind induced him (Kane) to kill his brother (Able), so he killed him and became one of the losers.
Then Allah sent a raven which scratched in the ground, that He might show him how to hide the corpse of his brother. He said, ‘Woe is me! Am I not able to be even like this raven so that I may hide the corpse of my brother?’ And then he became regretful.
On account of this, We prescribed for the children of Israel that whosoever killed a person — unless it be for killing a person or for creating disorder in the land — it shall be as if he had killed all mankind; and whoso gave life to one, it shall be as if he had given life to all mankind. And Our Messengers came to them with clear Signs, yet even after that, many of them commit excesses in the land. (Al Quran 5:31-33)
A major study suggests that killing among chimpanzees results from normal competition, not human interference.
Apart from humans, chimpanzees are the only primates known to gang up on their neighbours with lethal results – but primatologists have long disagreed about the underlying reasons.
One proposal was that human activity, including destroying habitats and providing food, increased aggression.
But the new findings, published in Nature, suggest this is not the case.
Instead, murder rates in different chimp communities simply reflect the numerical make-up of the local population.
The international study was co-written by more than 30 scientists and gathers data from some 426 combined years of observation, across 18 different chimp communities.
A total of 152 killings were reported. This includes 58 that were directly observed by researchers; the rest were counted based on detective work – tell-tale injuries or other circumstances surrounding an animal’s death or disappearance.