February 26, 2021



Most large land animals, and large sea animals, are vertebrates

Vertebrates are animals with an internal backbone or spinal column. There are over 85,000 species of vertebrate animals such as amphibians, birds, fish, mammals and reptiles. Most large land animals are vertebrates. Even large sea animals, such as the whale, are vertebrates. However, only about 5% of all animal species are vertebrates. The remaining 95% of animals are invertebrates that don’t have an internal backbone (e.g., insects, mollusks and arthropods).

The defining characteristic of all vertebrates is the vertebral column or backbone. This vertebral column is a strong series of bones extending through the core of the body. Near the front end of the backbone is the mouth, with the anus opening near the back end of the backbone. In vertebrates with a tail, the vertebral column extends beyond the anus to the end of the tail. Above the backbone is the spinal cord, a major component of the nervous system. Below the backbone is the gastrointestinal or digestive tract.

The vertebral column is made up of many individual vertebrae interconnected with intervertebral discs. These vertebrae and intervertebral discs provide for flexibility and movement of the spine.

If you are interested in learning more about vertebrate animals, see the Kidport Vertebrate Animals Reference Library, or Kidport Animal Video Collection.


  1. love it

  2. thank yalll so much i really needed this website

  3. Azaka Osmond says:

    Thanks,he website is really helpful

  4. Vivian Handoko says:

    This helped me a lot with my research for my science assessment. However, it’ll be better next time if you write ur name (author’s name) on this webpage so that people can complete the bibliography.. Thankss anyway.. :D

  5. Vivian Handoko says:

    I mean full name :D

  6. its a vry intresting site…………… learned a lot from this

  7. Cool

  8. love it

  9. This site rocks!!

  10. I love aaaaaaaaaaal animals….thanks

  11. it was extremely helpful it gave me a lot of ideas luv it

  12. natasha says:

    this has helped me with my homework :)

  13. shmily raja says:

    love animal website

  14. Miranda Smits says:

    This Helped Me In My Science Class , Thank you (:

  15. :) :0

  16. Somebody says:

    This website is not very good. I wanted a little bit more info on vertebrates than other specific animals. This did not help me with my homework at all! :(

  17. this helped in my homework

  18. I loved it :)

  19. like it….. love it…. this helped my assignment in science…

  20. really amazing ………….this help me in my essay…

  21. very good

  22. really, this is best website………………………… this website help in my study…………….

Leave a Reply to aya Cancel reply