Mammals
Harris's Antelope Squirrel
Ammospermophilus harrisii · also called Harris antelope squirrel
Dashing between patches of shade at noon in the Sonoran Desert, Harris’s antelope squirrel holds its white-bellied tail over its back like a parasol, a small rodent that treats the midday sun as an ordinary working hour.
Overview
Harris’s antelope squirrel, Ammospermophilus harrisii, is a Least Concern rodent native to desert habitat in southern Arizona and northwestern Mexico. Its midday activity, parasol-like tail, and independence from drinking water make it one of the best-adapted small mammals of the Sonoran Desert.
A squirrel that works through the heat
While many desert animals hide from the midday sun, this squirrel carries its own shade, using its tail to keep cool as it forages.
Status
Least Concern, widespread and common across suitable desert habitat.
Harris's Antelope Squirrel: common questions
Why is Harris's antelope squirrel active in the midday heat?
Unlike many desert animals that wait for night, it forages through the hottest part of the day, using shade and its tail to stay cool.
What does it do with its tail?
It curls its tail up over its back like a parasol, using the pale underside to shade its body and reflect heat.
Does Harris's antelope squirrel hibernate?
No, it stays active through the winter.
Where is Harris's antelope squirrel found?
It is native to desert habitat in southern Arizona and northwestern Mexico, including the Sonoran Desert.