To test new medicines and other products to make sure they are safe to people, animals and the environment. To find out more about the needs of animals. To find ways to conserve endangered species. Where alternatives to the use of animals are available, they are strongly promoted. In all cases, animals are used because at present there is no other appropriate choice.
Many diseases cause great suffering and some kill animals by the million.
Human medical research has also given great benefits to pets and farm animals.