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Japan Endangered Species : Tokyo Sorex minutissima

Animal

Many people think of the Tokyo Sorex minutissima as a mouse. However, even though it is a mouse, it is one of the smallest mammals in the world and is very small. There is another surprising thing. Although it is named Tokyo, its habitat is not Tokyo. It’s Hokkaido. The reason why the name is Tokyo is that when registering the name, it should be written as Ezo, but it was written as Ed. It’s a very confusing story, but think of it as an animal that lives in Hokkaido. It is classified into the genus Shrews of the family Shrews.

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Habitat

They live in Hokkaido, Japan. Habitat has been confirmed in Shiranuka Town, Nemuro City, Shikaoi Town, etc.

Characteristic

It is so small that it is said to be the smallest mammal in the world. It weighs 2g and is only 45-49mm long. It is very difficult to distinguish between males and females because they are so small. A level that can only be understood by collecting and analyzing skin DNA. It’s that small. It is said that it lives in grasslands and grasslands around marshes, and it is very small so it is very difficult to notice. Hair is only 3mm. By the way, the name is a mouse, but it is an animal close to a mole in terms of race.

Ecology

It prefers grasslands and grasslands. It has the property of repeating eating and resting every 30 minutes. If you don’t eat anything for more than 2 hours, you will die. The food is small insects. This mouse has poison, which can be used to paralyze the nerves of its prey and immobilize it. In the meantime, it preys. The Tokyo Sorex minutissima is vulnerable to shocks and is very delicate and can die suddenly. Details are unknown as we do not yet know the details of the ecology.

Endangered species

The first one was found in 1903. However, it is an animal that has not been found at all for more than 50 years. It’s such a rare animal that you can’t easily see it. Currently, the Ministry of the Environment of Japan classifies this rare animal as Endangered Species II. Since it is very small and the discovery itself is very rare, it seems difficult to grasp the ecology.

Breeding

Since it is a very rare and small creature, breeding is currently prohibited by law. Shrews are illegal to capture and breed and cannot be bred. Only some research institutes and designated zoos are allowed to breed. Since it is impossible for ordinary people to breed it, there is no choice but to watch it at a zoo.

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