Is A Bird A Vertebrate. They're bones are very fragile though so be careful when you handle them. These are birds that have a backbone and other adaptations for the marine life.
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There are midsized crows with high levels of intelligence. Fish are vertebrates that live in water and have gills, scales and fins on their body. Bird and vertebrate are synonymous, and they have mutual synonyms.
The main phyla (groups) of invertebrate animals are:
Exceptions to this would be things like an insect this is unique in the vertebrate world, because fish, reptiles, birds, and mammals are all born as small versions of the adult, not a completely different form. A sea bird is not an invertebrate but a vertebrate. All tetrapods (the group of vertebrates that includes the mammals, birds, reptiles and amphibians) are descended from a pentadactyl ancestor. They're bones are very fragile though so be careful when you handle them.
