St Kilda house mouse facts for kids
Quick facts for kids St Kilda house mouse |
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| Conservation status | |
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Extinct (c. 1930)
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Scientific classification  |
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| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Rodentia |
| Family: | Muridae |
| Genus: | Mus |
| Species: | |
| Subspecies: |
†M. m. muralis
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| Trinomial name | |
| Mus musculus muralis Barrett-Hamilton, 1899
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The St Kilda house mouse (Mus musculus muralis) was a special type of house mouse. It lived only on the remote St Kilda islands, a group of islands off the northwest coast of Scotland. This unique mouse was first described in 1899 by a natural historian named Gerald Edwin Hamilton Barrett-Hamilton. He also described another local mouse, the St Kilda field mouse, at the same time.
Contents
The St Kilda House Mouse: A Lost Species
The St Kilda house mouse was a fascinating subspecies, meaning it was a distinct group within the larger family of house mice. Its story tells us a lot about how animals can change when they live in isolated places and how human actions can affect wildlife.
Where Did These Unique Mice Live?
It's not clear exactly when the St Kilda house mouse first arrived on these islands. However, it's possible they came along with the Norse people during their travels long ago. The Norse were explorers and settlers from Scandinavia who visited Scotland many centuries ago. The mice might have accidentally traveled on their boats, arriving on St Kilda without anyone realizing it.
How Did They Become Different?
Once on the St Kilda islands, these mice became isolated. This means they were cut off from other mice living on the mainland. Over time, because of this isolation, the St Kilda house mouse started to change and become different from its relatives elsewhere. It grew larger than the mice found on the mainland. Interestingly, it shared some features with another special mouse subspecies found on Mykines in the Faroe Islands. This suggests that isolation can lead to similar changes in different places.
Why Did the St Kilda House Mouse Disappear?
The St Kilda house mouse became extinct very quickly around 1930. This happened when the last human residents of St Kilda were evacuated from the islands. The St Kilda house mouse depended entirely on human settlements for its food and shelter. Without people living there, the mice could not survive on their own. Their habitat was directly linked to human presence.
A Look at Museum Specimens
Even though they are extinct, we can still learn about these mice. Some examples, called specimens, are kept safely in museums today. These specimens help scientists study what the St Kilda house mouse looked like and how it lived. They are important clues about this lost species.
The St Kilda Field Mouse: A Survivor
It's important to know that not all mice on St Kilda disappeared. The St Kilda field mouse (Apodemus sylvaticus hirtensis), which is a type of wood mouse, still lives on the islands. Unlike the house mouse, the field mouse did not rely on human homes and could survive in the wild environment of St Kilda. This shows how different species can have different needs for survival.
See also
In Spanish: Ratón doméstico de San Kilda para niños
