If elephants reach a point where they can't help their own and must turn to extreme measures, you can understand that something must be really really wrong. This time, the little calf was in dire trouble, and non of the elephants could help. So they did something they would never have done under normal circumstances.
Elephants are the largest animals on land. They are also considered one of the most majestic species in the entire animal kingdom. Wild elephants have little to no contact at all with human beings. They are independent and are usually hesitant and distrustful of human beings. But perhaps, there are instances where even this strict rule must be brushed off to the side.