Zebra are closely related to the domesticated ... even in dense undergrowth. The hippo, could also have offered unique agricultural and military advantages to African civilization.

When the song is familiar, practise miming a hippo balancing on a rock, then put children in groups of five and let them act it out while singing. Rhyme time: A zebra makes a very strange sound ...

The sequel to 2005's "Madagascar", in which New York Zoo animals, Alex the Lion, Marty the Zebra, Melman the Giraffe and Gloria the Hippo, still stranded on Madagascar, start to leave the island.

How do a lion, a zebra, a hippo, a giraffe, four penguins, two monkeys, and three lemurs travel through Europe without attracting attention and get back to New York? They join a traveling circus.