The kangaroo (Macro pus) lives in droves in the open grassy plains.
On the latter hypothesis it has been generally assumed that the wild camels are the descendants of droves of the domesticated breed which escaped when certain central Asian cities were overwhelmed by sand-storms. This theory, according to Professor Leche, is rendered improbable by Dr Sven Hedin's observations on the habits and mode of life of the wild camel.
Droves of swine under the charge of swineherds wandered through the forests; some belonged to the ri, others to lords (flaith) and others again to village communities.
Formerly these beautiful antelopes existed in countless numbers on the plains of South Africa, and were in the habit of migrating in droves which completely filled entire valleys.
The gelada inhabits the mountains of Abyssinia, where, like other baboons, it descends in droves to pillage cultivated lands.