Animals are a diverse group of organisms that comprise all living species, such as mammals, birds, fish, reptiles, and insects.
Mammals are a subgroup of animals that have certain characteristics such as hair, mammary glands for nourishing young, and three middle ear bones.
There are two types of mammals: land mammals and marine mammals. Land mammals live on land, while marine mammals live in the water. Examples of land mammals include elephants, lions, and bears.
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The long-term conservation of land mammals in Mauritania is embedded in a complex web of socioeconomic and environmental factors that call for collaborative action and investment in sustainable human development.
Book title: Bone Guide to the Selected Land Mammals of the Northwestern States Book
The Animal Welfare Act as amended is the central federal statute governing the humane care and handling of mammals and certain other animals..