UCSB Science Line
Sponge Spicules Nerve Cells Galaxy Abalone Shell Nickel Succinate X-ray Lens Lupine
UCSB Science Line
Home
How it Works
Ask a Question
Search Topics
Webcasts
Our Scientists
Science Links
Contact Information
Is there any animal that during its evolution it was first able to swim, then it evolved to a walking animal, and finally was able to fly?
Answer 1:

Your question is interesting, but no single species has evolved through these steps. The ancestors of birds, which fly, walked on land without flying. The ancestors of those walking reptiles were fish, which swam. However, the ancestors of the animals we have today are now extinct (meaning that they are all dead).

By the time a group of animals changes a lot, it is a new species. What changes would an animal have to have before it could move from water to land? What kind of changes would a walking reptile need to have before it could fly?
Thanks for asking


Click Here to return to the search form.

University of California, Santa Barbara Materials Research Laboratory National Science Foundation
This program is co-sponsored by the National Science Foundation and UCSB School-University Partnerships
Copyright © 2015 The Regents of the University of California,
All Rights Reserved.
UCSB Terms of Use