Nimba otter shrew

The Nimba otter shrew (Micropotamogale lamottei) is a small, special kind of animal that looks a bit like a weasel but is actually related to otter shrews. It belongs to the mammal family Potamogalidae. Otter shrews are interesting animals that live in parts of Africa and look similar to shrews. They are very closely related to the tenrecs that live on the island of Madagascar.

This particular species, the Nimba otter shrew, gets its name from the tiny river weasel meaning in its scientific name, Micropotamogale. You can find these animals in the Mount Nimba area, which is located where three countries meet: Liberia, Guinea, and Côte d'Ivoire, also known as the Ivory Coast, in West Africa. This makes the Nimba otter shrew a unique and special creature living in just one place in the world.

Description

The Nimba otter shrew is a tiny mammal that weighs about 125 grams, which is roughly the same as a small apple. Its body is between 15 and 22 centimeters long, and its tail makes up about a quarter to a third of its total size. It has been described as looking like a small sea otter with a long, thin tail. The fur of the Nimba otter shrew is long and usually covers its ears and eyes. It is most often brown, but sometimes black or gray.

Evolution and life history

The Nimba otter shrew belongs to a family called Potamogalidae. Scientists know it is related to special animals called afrotherian tenrecs because of how its body is built. Tests with tiny pieces of the animal also show this link. However, it is hard to learn more because people have been digging up iron ore near Mount Nimba. This digging has damaged the area where fossils could be found. Also, the mountain is in three different countries, making it difficult for scientists to study.

Ecology and behavior

The Nimba otter shrew is active mostly at night and likes to live near water. It enjoys soft soil around small rivers and streams. This animal usually lives alone, except during mating time or when a mother is taking care of her babies. Scientists do not know much about how these shrews have babies in the wild, and they have not seen them mating in places where animals are kept for study.

Conservation status

The Nimba otter shrew was once considered endangered, but its status was updated to vulnerable in 2018. These animals live in a small area on Mount Nimba, covering less than 5,000 square kilometers. Their home is being broken up by mining and farming, which also pollutes the water they need.

The number of Nimba otter shrews is falling quickly—about one for every 10 square kilometers each year. Experts think there are fewer than 2,500 to 3,500 left in the wild, and none are kept in zoos. Though they were expected to disappear soon, some groups remain healthy in protected areas like Liberia's East Nimba Nature Reserve and Mount Nimba Strict Nature Reserve in Guinea and Côte d'Ivoire. However, these places still face threats from nearby mining activities.