In which fields of study are different animals commonly used?

- rhesus monkeys and other nonhuman primates: emerging infectious diseases, serious (brain) diseases, life-threatening situations. - nematodes (C. elegans): metabolic diseases (esp. obesity). - zebrafish: endocrinology and metabolic diseases, neurodevelopmental conditions. - drosophila: neurobiological processes. - pigs: studying and performing animal-to-human transplants. - rodents: infection and immunity, endocrinology, metabolism, cancer, pharmacology and therapeutics, neuroscience, surgical techniques.