New tank syndrome involves a dangerous buildup of toxins. Discover what causes it, how it hurts fish, and how to prevent it ...

These mysterious creatures undertake extraordinary journeys—a metamorphosis and migration so dramatic it rivals any in nature ...

In the famous words of a group of animated sharks, "Fish are friends, not food." And dermatologists say they certainly aren't ...

A RIKEN researcher and his colleague have identified how genes are expressed in fish embryos when they first start using ...