A gene therapy shot might keep cats from getting pregnant without being spayed
The experimental therapy targets a hormone that prevents ovulation
![A photo of four cats perched on a ledge.](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2023/06/060523_eg_genetherapy_cat_feat.jpg?fit=1030%2C580&ssl=1)
Two of these cats, Betty and Jacque (the two light cats), received an experimental gene therapy for contraception. Rosalyn and Michelle (the two dark cats) did not; they were in the control group.
Cincinnati Zoo & Botanical Garden