A grey mother cat lying on her side as a litter of four grey and ginger kittens drink her milk
A ginger cat lies on a wooden bench in the sun
Four cats sitting on a shelf in an indoor enclosure
A diagram showing how the new contraception works vs the control. Cats who received the medication have no ovulation and therefore no pregnancies. The control group cats have high progesterone and ovulation which leads to multiple successful breedings.