Mouse
Mice are pivotal in medical progress, facilitating treatments for cancer, heart disease, neurodegenerative disorders like Parkinson's, and psychiatric conditions such as anxiety and schizophrenia.
Rhesus macaque
Rhesus macaque monkeys, owing to their anatomical and physiological likeness to humans, have been instrumental in developing life-saving vaccines and treatments like those for polio, smallpox, rabies, and HIV/AIDS. They've also contributed to behavioral discoveries, showing promise in neural mechanism studies.