Langur Monkeys and Chital Deer Look out For Tigers

You might be tempted to make friends if you reside in a planet where tigers frequently prowl the area and might attempt to eat you and your buddies. That appears to be what chital deer and langur monkeys in India are doing. Both the deer and the monkeys are quick meals for tigers and have efficient ways of spotting predators on their own, but they do have some coverage gaps. Because they are in trees, monkeys can see approaching predators, which a deer cannot do while they are on the ground. When something does appear, they can make a call to notify not only other langurs but also the deer.

What can the monkeys do because they cannot constantly remain in the treetops and cannot see effectively while foraging or moving around on the ground? The deer come very handy here. The excellent sense of smell of deer allows them to detect approaching predators on the ground. The monkeys can then be warned to return to the trees as they run for cover. The reciprocal "I scratch your back, you scratch mine" relationship keeps them both living more successfully than each species could do on its own.