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American red squirrel

Tamiasciurus hudsonicus

Conservation status IUCN: Least concern· LC
American red squirrel (Tamiasciurus hudsonicus)
Photograph from Wikimedia Commons · Wikipedia article (it)

Where the name comes from

Tamiasciurus puts together two Greek words: tamías, the “steward”, the servant who in ancient households kept the keys to the stores, and skíouros, the squirrel. It is an exact description of the behaviour — this animal does not scatter its food, it heaps it in a single warehouse and stands guard. Hudsonicus points to Hudson Bay, whence the pelts sent to Europe came.

Facts

Group
Mammals · Mammalia
Order
Rodents
Habitat
Coniferous forest, mixed woodland, treed gardens
Range
Canada and the northern United States, from Alaska to the Appalachians
Size
28–35 cm including tail, 200–250 g
Diet
Conifer seeds, fungi, buds, maple sap, eggs
Lifespan
5 years in the wild

Characteristics

  • 01

    It piles up to eighteen thousand cones in a single underground store.

  • 02

    It defends its territory with a continuous trill, audible hundreds of metres away.

  • 03

    It scores the bark of maples and returns to drink the syrup once the water has evaporated.

What sets it apart

The store, which biologists call a midden, is an inheritable estate. A heap of cone scales built up over decades keeps the seed cool and damp, and is worth more than the territory itself: old females sometimes hand it to an offspring and move to poorer ground. It is one of the very few documented cases of a material possession being inherited in a mammal that is not a primate.

Next species

Southern flying squirrel

Glaucomys volans