Elephants exhibit social bonding and cooperation when caring for injured or sick members of their herd by showing empathy and coming together to provide support. They are known to stay close to the injured or sick individual, offer physical assistance such as helping them stand up or walk, and even share food with them. Additionally, elephants have been observed to vocalize and touch the affected member gently, showing emotional support and care. Overall, this behavior demonstrates the strong social bonds and cooperative nature within elephant herds.