The animal instinct of co-operation and empathy is also due to for the self survival. We co-operate and empathise with each other ensure our own survival. This

The animal instinct of co-operation and empathy is also due to for the self survival. We co-operate and empathise with each other ensure our own survival. This is why people who sacrifice their lives for others are exceptions rather than norm. Seeing somebody lying on tracks in front of an oncoming train, the common instinct of onlookers is not to jump but stay where they are.