सामायिकृत ऑडिओ

Animals are multicellular, eukaryotic organisms (Kingdom Animalia) that consume organic material, breathe oxygen, move, and reproduce sexually. With over 1.5 million described species—ranging from microscopic to 33.6m long—they are classified into vertebrates (with backbones) and invertebrates. They play crucial ecological roles, including pollination and ecosystem balance