Fish, especially zebrafish, have become the fastest growing segment of research populations. They have become indispensable tools in biomedical research. Laboratory fishes used in biomedical research include zebrafish, medaka, killifish, swordtail fish, cavefish, Stickleback, goldfish, and Danionella translucida. Among them, zebrafish is the most commonly used laboratory fish, and its transparent embryos and rapid growth make it ideal for studying genetics, toxicology, pharmacology, and cancer. In addition to this, zebrafish are popular among scientists because they share about 70% genetic similarity with humans.

Ahhh, but are they 60 and Over?

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