More trouble for deer. Endocrine-disrupting compounds make weird genitals

Bitterroot Valley resident tracks growing deformities by examining road kill-

New West has a story today about the likely effects of endocrine-disrupting chemicals on deer.  Bitterroot Rebel With a Cause. Genetic, Genital Damage in Montana Wildlife? (bad link is now fixed). By Joan Melcher. New West.

Almost half of the bucks had structural abnormalities.






  1. mikepost Avatar

    Ralph, link appears to be bad….

    Thanks! I fixed it. RM

    Now in 2022; the link is gone again because New West, the magazine it was in, is gone. RM

  2. jdubya Avatar

    Very interesting. Goes to show all it takes to be a good scientist is a curious intellect, basic research tools and a healthy dose of scepticism. I liked one of the comments on the bottom:

    “”The study, however, is important, if only because it is not politically driven nor has it ever been. The researcher is not an academic looking for a grant to serve his or her own situation. It is from the curious mind of someone who is intent of assembling and categorizing data, and that data will be important to further understanding the evolution of wild animals in an agrarian countryside. Puzzles have many pieces, and you need them all to see the big picture. Kudos to Judy Hoy for adding to knowledge.””

  3. Mike Avatar

    Pesticides are nasty, nasty stuff. Anyone who thinks you can “spray and forget” is sadly mistaken. Our testing technology is dwarfed by our ability to make things, which results in stories like this. Most pesticides should be made illegal.

  4. JimT Avatar

    First, all the amphibians and reptiles were the species showing signs of sex disruption, and now we see it moving up the food chain. Just think what all the prescription drugs and antibacterial agents being flushed into the water systems will be doing to us in the coming years.

    There was a GREAT article in the Sunday NYTimes on water pollution and how we have slipped backwards in our enforcement, and how much damage has been done. A great deal of the piece is concerned with coal and effects on folks in West Virginia, but can’t see why some of these same effects wouldn’t be of concern in Wyoming, for example.

    Even worse, there appears to be no good way to get these prescription drugs and excessive antibacterials out of the water system; it appears as if only reverse osmosis has any promise. $$$$$$$


Dr. Ralph Maughan is professor emeritus of political science at Idaho State University. He was a Western Watersheds Project Board Member off and on for many years, and was also its President for several years. For a long time he produced Ralph Maughan’s Wolf Report. He was a founder of the Greater Yellowstone Coalition. He and Jackie Johnson Maughan wrote three editions of “Hiking Idaho.” He also wrote “Beyond the Tetons” and “Backpacking Wyoming’s Teton and Washakie Wilderness.” He created and is the administrator of The Wildlife News.

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Ralph Maughan