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
Why do we go through puberty?
Answer 1:

Puberty is the period of the development of organs used in reproduction, the transition from a juvenile life to adult life. All multicellular organisms, animals and plants alike, do it, although in some the changes are more obvious than others.

Organisms that are too young may not be able to allot the nutrients and energy to reproduce, so don't do it until they reach a certain age or size.

In humans, puberty also causes a number of other changes that are not related to reproduction, the growth of body hair being an example. Why this happens I don't think anybody knows, but it may have to do with something called sexual selection (choosing of mates). It also may have been something that was important to our ancestors, but no longer matters for modern humans, and remains as an evolutionary relic.



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