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
How are birds similar to dinosaurs?
Answer 1:

Birds are a type of dinosaur. Apart from details of the skeletons that I can't explain (because I don't fully understand them myself), the evolutionary adaptation that seems to mark the origin of dinosaurs is having feathers.

Non-bird dinosaurs used those feathers mainly for warmth, but birds have also evolved to use them for flight as well as warmth.

Warm-bloodedness is also something that all dinosaurs including birds share and their closest living relatives do not; however, there is evidence that crocodiles and alligators descended from warm-blooded ancestors as well, so warm-bloodedness was probably indicative of a larger group of reptiles than just dinosaurs.



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