Camels are bumpy,
Their backs are all lumpy,
Giraffes are long- legged and meek:
Bears are so growly,
Hyenas are howly,
Dolphins are slippery and sleek.

Kangaroos have a pocket,
But no way to lock it,
Their babies can look out and peep,
But monkeys are funny
I wish I had money,
Enough to buy one and keep.

Anonymous.

Giraffe - long necks

Camels - humps

Kangaroos - ?

Choose the correct word to fill in place of the question mark.