Assistant Professor Doctor Sudsan Sirivaitayapong and the volunteer students from Veterinary Faculty, Chulalongkorn University has organized a special project for sterilization of cats and dogs at Santisook Dog and Cat Rescue Foundation. They helped sterilized 9 female dogs and 1 male dog and 14 female cats. This is an excellent activity in controlling population of dogs and cats. The main objective of our organization is to sterilize dogs and cats as much as possible in order to decrease the population of street dogs and cats. Sterilization is the most effective way to control the population of pets and street dogs and cats. We can see so many puppies and kittens born and have been left to die from sickness and starving. We sincerely thanks to the group in devoting their time, energy and fund for this project. Your support will help us to carry our mission for helping street dogs and cats to have a better life.