In the Sonoran Desert, we have "Round-tailed" Ground Squirrels. As you can see, their tails are smaller than those of tree squirrels. There aren't many tall trees in the desert so these squirrels don't need big bushy tails for balancing. They live underground and most of their food is found on or close to the ground.
Here's a squirrel in a creosote bush eating seeds.
See how he held onto the branch with his hind foot.
Notice the different ways they can use their tails for support while standing.
This baby squirrel puffed up its tail. It probably wanted me to go away, so I did. :)
If you like squirrels, check out the Plantain Squirrel in a Malaysian jungle at Rainfield's place.
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