Cat
Estrus / Heat Cycle in Dogs and Cats: Signs, Frequency, and Management (Why Spaying Is Better)
A complete guide to the estrus cycle in female dogs and cats: the 4 phases in dogs (proestrus, estrus, diestrus, anestrus), the seasonal polyestrus cycle in cats, characteristic signs (vocalisation, lordosis, swollen vulva), age of onset, management without spaying (diapers, preventing escape), pseudopregnancy, and why spaying gives long-term health benefits (pyometra, mammary cancer, lifespan).