Eleanor Stackhouse Atkinson,
The How and Why Library — Section VI
(1915)
“ On the slightest alarm the babies vanish! Not one is in sight as the herd goes bounding away. The little ones are not on their mama's backs, and there are no holes in the ground big enough for them to go into. Watch the kangaroos feeding in the zoo, and maybe you can solve the puzzle of the disappearing babies. There doesn't seem to be a baby in the pen. Suddenly a little head, no bigger than a mouse's bead, pops out of the fur on a mother's breast, like a jack-in-the-box, and pops back again. That is surprise number two. The mother kangaroo has a deep, flat, fur-lined pocket on her stomach. ”
