46 BOOK OF NATURAL HISTORY. 
full height, stretched out his 
long black tongue, and, having 
twisted it round a branch, 
pulled downwards. The other 
giraffe was on the watch, and 
when the branch came near, 
caught hold of a leaf with his 
lips and pulled it off. In do- 
ing this, he jerked the branch 
so that it uncurled the other 
giraffe’s tongue and flew up 
again. By the time that the 
leaf was eaten, the branch had 
been pulled down again, and 
another leaf was picked ; and 
so they went on for a long 
time, ' — one pulling down, the 
other eating. But the one who 
