The thin green line aired on pbs sunday, april 18, 2010 at 8 pm as part of the 28th season of the peabody and emmy awardwinning series produced by thirteen in association with wnet. Atrazine gives frogs male and female gonads, says field study. Commonly used atrazine herbicide adversely affects fish. Hayes initial studies found that atrazine had demasculinizing effects on african clawed frogs. Atrazine is one of the most common pesticides in the us, used at about 6080 million pounds a year in the us, mainly on corn. Approximately 80 million pounds of it are used across the country each year. Its a common contaminant of ground, surface and drinking water.
Over a million stunning new images at your fingertips. One of the mostly widely used weed killers, atrazine, may be disrupting male frogs sexual developmenteven reversing it. Cp 61 fao specifications for plant protection products atrazine 2chloro4ethylamino6isopropylamino1,3,5triazine food and agriculture organization of. Born in columbia, south carolina, hayes spent his childhood studying frogs.
Syngenta later also purchased the phrases amphibian hayes, atrazine frogs, and frog feminization and searching online for. At that time, epa considered all relevant scientific publications and reports, and included several studies cited in the petition summary as scientific evidence. The larger animal on the bottom has been completely feminized. Atrazine exposure disturbs frogs sexual development. Hayes born july 29, 1967 is an american biologist and professor of integrative. The story of how atrazine became so hated by the general public and demonised by the media is a bizarre and almost unbelievable one. Atrazine induces complete feminization and chemical castration in male african clawed frogs xenopus laevis. Atrazine can be transported more than 1,000 km from the point of application via rainfall and, as a result, contaminates otherwise pristine habitats, even in remote. Atrazine and the environment features tyrone hayes, ph. How do common chemicals affect frogs, rats and maybe us. Atrazine is one of the most widely used pesticides in the world. Pesticide turns male frogs into females live science. Save the frogs ban atrazine and other frogtoxic pesticides.
Commonly used atrazine herbicide adversely affects fish reproduction date. The story started with the publication of research that showed. Atrazine, a weed killer widely used in the midwestern united states and other agricultural areas of the world, can chemically castrate male frogs and turn some into females, according to a new. When hayes research found unexpected toxicities for atrazine, he reported. Confused frogs, lawsuits, hush money, and studies funded by syngenta effects of atrazine on frogs and fish heres a controversial video where alex jones makes some comments about how there are chemicals in the water. Tyrone hayes spits a rhyme, please take 2 minutes of time, because atrazine affects us all, after this video to congress you may call. Atrazine induces complete feminization and chemical. Its so dangerous to both people and wildlife that it has been banned by the european union. The potential effects of atrazine on gonadal development in metamorphs and subadults of the african clawed frog xenopus laevis were studied under conditions. Berkeley the nations topselling weed killer, atrazine, disrupts the sexual development of frogs at concentrations 30 times lower than levels allowed by the environmental protection agency epa, raising concerns about heavy use of the herbicide on corn, soybeans and other crops in the midwest and around the world.
When hayes found results syngenta did not expect that atrazine causes sexual abnormalities in frogs, and could cause the same problems. Pesticide atrazine can turn male frogs into females. A common herbicide turns some male frogs into females. The pesticide atrazine can turn male frogs into females that are able to mate and successfully reproduce. Find out more information about atrazine at the below. Atrazineexposed frogs dont have normal reproductive systems, he said. The herbicide atrazine, one of the worlds most widely used pesticides, wreaks havoc with the sex lives of adult male frogs, emasculating threequarters of them and turning one in 10 into females. The herbicide atrazine is one of the most commonly used, well. Boost engagement with internal communication videos. Controversy erupted over new findings that atrazine may be linked to global demise of frogs.
Atrazine induces complete feminization and chemical castration in. Biologist tyrone hayes talks about the concerning effects of the herbicide atrazine, which is part of a group of. Gonadal development of larval male xenopus laevis exposed to. Approximately 80 million pounds are applied annually in the united states alone, and atrazine is the most common pesticide contaminant of ground and surface water. Atrazine is one of the most commonly used herbicides in the united states.555 359 759 83 356 1363 302 418 1374 1455 1220 805 655 681 1424 562 1400 88 1089 526 441 1065 835 700 1269 588 821 1189 1413 1454 1497 1206 95