However, waterhole selection by elephant remains poorly understood.
If our waterhole hominids resorted to second best, lobbing a rock into the herd's midst, it would not trip animals but it might knock one down.
The pesticide was poured into the waterholes in the marshy areas where the elephants come to drink.
They can move to areas of greater food availability as the desert blooms after local rainfall and can fly to faraway waterholes.
Arrernte country is rich with mountain ranges, waterholes and gorges, which create a variety of natural habitats.
The few small waterholes are fringed by lignum, belalie and coolibahs.
The small, widely scattered waterholes attract a surprising number of water birds for a desert area.
It also faces competition at waterholes and for grazing with domestic livestock.
