“A birth control injection for deer puts them completely out of the mood to mate for up to five years without a booster. GonaCon, as the birth control is called, even eliminates dangerous and destructive courtship behaviors responsible for the autumn increase in collisions between cars and deer.
The birth control shot is actually a vaccine that causes the deer to produce antibodies against a key hormone, Gonadotropin-releasing hormone (GnRH), which triggers production of sex hormones. GnRH kicks in when days get shorter and triggers many animals from northern latitudes to get feisty for the mating season.”
“Deer Birth Control Could Prevent Collisions,” Tim Wall, DiscoveryNews
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