Animals, a diverse group of living organisms that consume other organisms for energy, have been a constant source of companionship, production, support, and sustenance for much of human history. Maintaining balance in our ecosystems, all animals are connected by the various important roles they play in making the environment function properly and it is the responsibility of humans to preserve and protect these fragile systems. The following collections of animal families provide an overview of the large range of varieties, sizes, and characteristics of mammals, birds, reptiles, fish and insects that coexist with humans on Earth. We will be continuing to expand our guides over time to cover in further detail the particular distinctions between the many forms of animal life in the world.
Bison, also commonly known as buffalo, are nomadic grazing herbivores and the largest surviving terrestrial mammals in North America and Europe. Once a symbol for the American Great Plains, vast herds of bison provided food, clothing and tools for the native people of the prairies.
A comprehensive reference database of dimensioned drawings documenting the standard measurements and sizes of the everyday objects and spaces that make up our world. Free CAD blocks and illustrations in .dwg and .svg formats.