Animals in Research

Zebrafish embryos – 24-hours-old

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

Zebrafish embryos are transparent and they also develop quickly. These particular embryos are shown twenty-four hours after fertilization. Each week, a breeding pair of adult zebrafish generate hundreds of embryos that can be used to study the safety and efficacy of new medications. The use of these embryos has helped reduce or replace other types of larger animals for some tests.