The larval zebrafish brain is less than 0.5 mm3 but it contains nearly 100,000 neurons. Pictured are adult zebrafish. File photo by Stephanie Mitchell/Harvard Staff Photographer
The larval zebrafish brain is less than 0.5 mm3 but it contains nearly 100,000 neurons. Pictured are adult zebrafish. File photo by Stephanie Mitchell/Harvard Staff Photographer