Animals in Research

Fourteen-day-old zebrafish larva

Location: USA
Group: Aquatics
Species: Zebrafish
Research Areas: Safety and efficacy testing

Zebrafish larvae are raised from eggs to eventually become breeding adult fish that provide embryos for research studies. The transparent bodies of these young fish allow for non-invasive assessment of organ and tissue changes, something that is not possible with mammals. Their transparency is very helpful when conducting safety and efficacy tests of new medicines.