Small mammal

Small mammals, also called micromammals, are a group of mammals that are small. Scientists have different ways to decide which animals are small mammals. For example, the International Biological Programme says small mammals weigh up to 5 kg. The International Union for Conservation of Nature (IUCN) uses the term for groups like rodents, tree shrews, and eulipotyphlans, which include animals such as moles and shrews.

Most of the world's mammal species are small mammals. They live in many places, such as forests, deserts, mountains, and cities. Because of their size and numbers, small mammals are important in nature. They help spread seeds and control insect populations. Their presence in many environments makes them useful for scientists who study ecosystems and climate change.

Characteristics

Many small mammals live short lives and have lots of babies. This helps change their genes over time. Because they are tiny, they don’t need much energy to move, but they need a lot of energy to stay warm. This means they eat a lot and try many different kinds of food. Their small size and the fact that they are often active at dawn, dusk, or night helps keep them safe from bigger animals that might want to eat them.

List of species

The tree shrews (family Tupaiidae) are small animals that look a bit like monkeys. They belong to the order Scandentia and are split into two groups. The Tupaiinae group is awake during the day and has five types. The Ptilocercinae group is awake at night and has one type, called the pen-tailed tree shrew Ptilocercus.

Research and conservation

The SSC Small Mammal Specialist Group (SMSG) of the IUCN helps protect small mammals around the world. They study these animals and work to keep them safe.