Birds are feathered, egg-laying vertebrates, the vast majority of which can easily fly. They're located on just about every continent and can survive in a wide array of conditions.Sexual copy, with internal fertilization and the event of embryos in the woman’s systemA lot of the cutest animals that make wonderful Animals include things like cats,

One of the defining attributes of invertebrates is their not enough a spine. Alternatively, they may have A variety of other structural attributes that supply assist and safety. Some invertebrates, like insects and spiders, have an exoskeleton made from chitin, while some, like jellyfish and worms, Use a hydrostatic skeleton that uses fluid stress