Animal

Be it Choanoblastaea, or Gastrobionta, or Zooaea, or Metazoa, these are all the synonyms that define animals. Animals are generally multicellular, eukaryotic organisms that are found in the biological kingdom of Animalia. When it comes to consumption, animals have only A few exemptions. Hence, they can consume a wide range of organic materials.

Moreover, they breathe oxygen, move from one place to another as a part of their nature. They can reproduce sexually as well, and they go through the ontogenetic stage as well. Normally, their body consists of a hollow somewhere of cells and a blastula when they are in the embryonic stage. In this world, scientists have so far recognized up to 1.5 million living animal species. Although among them 1 million are just insects. But they have also estimated that there are 7 million animal species in total.

When it comes to size, they vary differently. Their length may vary from 8.5 micrometers to 33.6 meters. However their method of interaction with each other, their habitat have formed an intricate food web. The study that the scientists have dedicated to analyzing the life of animals is known as zoology. Humans use many other animal species for their specific needs. Starting from food, or for producing materials, to making them as a companion, the animals are interlinked with the human world.