Dr. Tyrone Hayes, PhD.  This page showcases the work of Dr. Tyrone Hayes, a Harvard graduate, who is currently is a professor of Integrative Biology at University of California Berkeley .  He studied the effects of the agricultural chemical Atrazine on the physiology and behaviour of frogs and repeatedly observed serious endocrine disrupting effects on their reproductive anatomy and behaviours.  He refused to keep those results quiet when the corporation Syngenta (formerly Novartis) tried to bury his work.    Unfortunately frogs are not the only victims of chemical endocrine disruption.  Dr. Hayes has become a vocal activist for change due to the seriousness of his and other scientists' research results, and also because people of color and disadvantage are usually more exposed to these chemicals than are other groups. https://vcresearch.berkeley.edu/faculty/tyrone-b-hayes     Dr. Haye's personal history is here: http://www.idvl.org/sciencemakers/Bio23.html     Here is the Wikipedia entry with a list of Dr. Hayes' publications   https://en.wikipedia.org/wiki/Tyrone_Hayes

Here is a showcase of a few researchers who have studied endocrine disruption and other effects of environmental toxins including gender alteration. There is an unintended space between this section and the next.  Scroll to find the next content block.  Working on a solution.

Dr. Warren Porter, PhD University of Wisconsin Madison,  Professor of Zoology and Environmental Toxicology   Link to Warren Porter's page	Dr. Fred vom Saal University of Missouri, Columbia Curators’ Distinguished Professor Emeritus of Biological Sciences  Link to Fred vom Saal's page	Dr. Tyrone Hayes University of California Berkeley Professor of Integrative Biology   Link to Tyrone Haye's page	Dr. Louis Guillette, PhD University of North Carolina at Chapel Hill and Medical University of South Carolina Professor of Obstetrics and Gynecology Doctorate in Comparative Reproductive Biology Endowed Chair in Marine Genomics Professor Howard Hughes Medical Institute University of Florida Distinguished Professor of Zoology and Associate Dean for Research Dr Elizabeth Guillette, PhD University of Arizona Associate Professor and Researcher University of Florida Anthropology Dept. Health and culture - Yaqui Valley children study Link to Louis and Elizabeth Guillette's page
Dr. Don Huber, PhD. Emeritus Professor of Plant Pathology at Purdue University, Associate Director of the Armed Forces Medical Intellegence Center (Colonel)  Link to Don Huber's page	Dr. Theo Colborn PhD. Professor Emerita of Zoology, U of Florida, Gainesville.  Founder of The Endocrine Disruption Exchange, B.S. in Pharmacy, College of Pharmacy at Rutgers, U, M.A. in Science, Western State College of Colorado, Gunnison Link to Theo Colborn's Page	Dr. Michael K. Skinner Coming - Link to Michael Skinner's page	Dr. Bruce S. McEwen Coming - Link to Bruce McEwen's page
Dr. Tyrone Hayes, PhD. University of California Berkeley Professor of Integrative Biology   Jump back to the Science page	Dr. Tyrone Hayes publications	Silencing the Scientist: Hayes on Being Targeted By Herbicide Firm Syngenta 18 minutes	Tyrone Hayes - Pesticide Effects Can Span Generations 4minutes 40 seconds
Dr. Tyrone Hayes How Food Changes Men to Women 1 hr 39 minutes	Dr. Tyrone Hayes, PhD. 2017 SACNAS Keynote Presentation 20 minutes 18 seconds	Tyrone Hayes - The Toxic Baby TED Talk 17 minutes 48 seconds	Dr. Tyrone Hayes Atrazine and its Effects on the Endocrine System 3 minutes
Tyrone Hayes - Of Frogs and Men 1 minute 48 seconds	Tyrone Hayes - Learning from an Environmental Tragedy 1hr 30 min	Dr. Tyrone Hayes - TEDX Talk Endocrine Disruption, Environmental Justice and the Ivory Tower 15 minutes 45 second	Dr. Tyrone Hayes, Kauai, 05/21/2014  1 hr 13 min
Dr. Tyrone Hayes April 2019  From Silent Spring to Silent Night 1 hour 8 minutes	Dr. Tyrone Hayes - Crown Lecture in Ethics - When Scientific Integrity and Corporate Interests clash  1 hour 13 minutes	Episode 1 - Tyrone Hayes 34 minutes	Dr. Tyrone Hayes - A Tale of Frogs and Fish and Men (and defeminized female minnows) 4 minutes 24 seconds
We know that we originate with God, but the whole world is lying in the power of the wicked one.  1 John 5:19 But the nations became wrathful, and your own wrath came, and the appointed time came for those fearing your Name, the small and the great, and to bring to ruin those ruining the earth." Revelation 11:18	Endocrine Disruption Video Playlist from many researchers 43 presentations	Dr. Tyrone Hayes, PhD with Penelope Jaqussar Chaffer The Toxic Baby 17 minutes 48 seconds	Penelope Jaqessar Chaffer The Most Polluted Generation  (Newborns) 13minutes 50 seconds

Below is a summary of Dr. Warren Porter's list of EPA Omissions in the Safety Registration Process

In other words, these are all the areas that they do NOT test before approving a new chemical.

More Resources:

Endocrine Disruption Abstracts  Clickable pdf 

Most of these papers were shared by Dr. Warren Porter, PhD