Lizzie and Karl's mother is a zoo keeper; the family has become attached to an orphaned elephant named Marlene, who will be destroyed as a precautionary measure so she and the other animals don't run wild should the zoo be hit by bombs.

Cuvieronius. The Cuvieronius is famous as one of the few prehistoric elephants (the other documented example is the Stegomastodon) to have colonized South America, taking advantage of the "Great American Interchange" that connected North and South America a few million years ago.

Sometimes called Borneo pygmy elephants, these relatively small mammals were separated from the rest of the continent's elephants over 300,000 years ago. Over time, Borneo elephants became smaller while developing proportionally larger ears, longer tails, and straighter tusks than other Asian elephants.

Three living species are currently recognised: the African bush elephant (Loxodonta africana), the African forest elephant (L. cyclotis), and the Asian elephant (Elephas maximus). They are the only surviving members of the family Elephantidae and the order Proboscidea; extinct relatives include mammoths and mastodons.