Rabbit
Rabbits, instrumental in developing the rabies vaccine, paved the way for pets in households. Their anatomical and physiological resemblance to humans aids research in cancer, glaucoma, infections, diabetes, and emphysema.
Cat
Cats are crucial in neuroscience, ophthalmology, retrovirus, and inherited disease research. They uniquely replicate Alzheimer's pathology, aiding veterinary and human medical advancements in various diseases.
Marmoset
The common marmoset, due to its size and similarities with humans, is crucial in safety, reproductive biology, neuroscience, and drug development studies. In multiple sclerosis research, its immunological likeness aids therapy development.