What is Animal Kingdom?

The basic fundamental features such as level of organisation, symmetry, cell organisation, coelom, segmentation, notochord, etc., have enabled us to broadly classify the animal kingdom. The animal kingdom contains all the animals from the simplest to the most complex. Animals are multicellular organisms that are capable of movement, either actively or passively.

They are heterotrophic, i.e., they obtain their energy by consuming other organisms or organic matter. The animal kingdom is divided into many phyla, each with its unique characteristics and adaptations. Some of the most well-known phyla include the arthropods, which include insects, spiders, and crustaceans, and the chordates, which include vertebrates like fish, amphibians, reptiles, birds, and mammals.

Animal kingdom also known as the kingdom Animalia, is a diverse and vast biological kingdom consisting of multicellular, eukaryotic organisms. The classification of animals is based on various criteria, including arrangement of cells, body symmetry, nature of coelom, patterns of digestive, circulatory, or reproductive systems. The animal kingdom is primarily classified into vertebrates (animals with a backbone) and invertebrates (animals without a backbone), with further subdivisions into various phyla based on anatomical and genetic traits.