About Zebrafish

The zebrafish (Danio rerio) is a freshwater cypriniform native to India. They are common in the aquarium trade, and are gaining popularity as a research model organism. Their high fecundity rates, transparent embryos, short generation time, and hardiness make them optimal model organisms for studying many areas including:

  • Developmental biology 
  • Environmental toxicology
  • Pharmacology
  • Embryological studies
  • Human disease modeling
  • Neurobiology
  • Cardiology
  • Animal behavior
  • Cancer research
  • Organ and fin regeneration
  • Aquatic biology

Why use zebrafish?

  • Embryos develop externally to the mother, are transparent and thus are easily observed under a microscope
  • Basic embryology and brain structure are similar to humans
  • One pair can produce over 10,000 embryos
  • Short generation time (3 months)
  • Genes and flourescent proteins can be integrated into the genomes of their embryos to show the location of specific proteins
  • The basic body plan of a zebrafish develops in 24 hours (9 days in a mouse)
  • Embryos can be easily injected with cell dies or transgenes
  • Maintenance costs of zebrafish are considerably less than the cost of mice
  • Zebrafish are considered a replacement of mammals in research

Zebrafish are gaining popularity as a research model organism.

Adult Male and Female

Fli Gata ZebrafishFli Gata Zebrafish 

24 Hour Embryos

24 Hour Embryos

1 Cell Embryo

1 Cell Embryo