Signal transduction

Hormones in the Environment

Steroids and hormones used to treat livestock are passing through the animals and into the environment. Science News senior editor Janet Raloff discusses concerns that they may be damaging the development of fish and other animals.

Tell us about your experience accessing The World

We want to hear your feedback so we can keep improving our website, theworld.org. Please fill out this quick survey and let us know your thoughts (your answers will be anonymous). Thanks for your time!

We respect your time, attention and privacy

This is a news website, not a click casino. We do NOT employ deceptive behaviors, display annoying ads or use third party cookies and trackers to monetize your visit or help advertisers track you across the internet.

Simply, we ask that you would consider a donation to support the journalism we produce every weekday. Thank you.