The idea that animals of different species, including predators and prey, can peacefully congregate around a watering hole. In reality, large mixed-species gatherings around water holes generally only occur in extremely dry places like the Kalahari desert, when the animals' need for water is enough to outweigh their natural fear or hunting instincts. On a tropical island like Isle Nublar, water is plentiful so there wouldn't be any reason for such a congregation. Such places are not exactly peaceful either as many will fight to get at the water, and predators are always lurking either on land or in the water.