He would choose the flat rocks mostly. His huge right paw, with its long
claws, was as clever as a human hand. The stone lifted, a sniff or two, a
lick of his hot, flat tongue, and he ambled on to the next.

He took this work with tremendous seriousness, much like an elephant
hunting for peanuts hidden in a bale of hay. He saw no humour in the
operation. As a matter of fact, Nature had not intended there should be any
humour about it. Thor's time was more or less valueless, and during the
course of a summer he absorbed in his system a good many hundred thousand
sour ants, sweet grubs, and juicy insects of various kinds, not to mention
a host of gophers and still tinier rock-rabbits. These small things all
added to the huge rolls of fat which it was necessary for him to store up
for that "absorptive consumption" which kept him alive during his long
winter sleep. This was why Nature had made his little greenish-brown eyes
twin microscopes, infallible at distances of a few feet, and almost
worthless at a thousand yards.

As he was about to turn over a fresh stone Thor paused in his operations.
For a full minute he stood nearly motionless. Then his head swung slowly,
his nose close to the ground. Very faintly he had caught an exceedingly
pleasing odour. It was so faint that he was afraid of losing it if he
moved. So he stood until he was sure of himself, then he swung his huge
shoulders around and descended two yards down the slope, swinging his head
slowly from right to left, and sniffing. The scent grew stronger. Another
two yards down the slope he found it very strong under a rock. It was a big
rock, and weighed probably two hundred pounds. Thor dragged it aside with
his one right hand as if it were no more than a pebble.

Instantly there was a wild and protesting chatter, and a tiny striped