Here, birds alone make up their own separate type of animal. Birds are defined as vertebrates – animals with backbones – that have feathers and wings.

Classification allows us to group animals together depending on their similarities and differences. Animals are divided into two main groups: Animals with a backbone are called vertebrates.

Learn about classification of plants, animals and microorganisms with these interactive learning resources for KS2 Science students aged 7-11 from BBC Bitesize.