zebrafish

Heart attacks are dangerous not just because of the initial event, but the long-term damage afterwards. Now scientists have discovered a dormant gene that could be reactivated to regenerate heart tissue, preventing the progression to heart failure.

Scientists have found the molecular mechanism that causes a losing zebrafish to wave the white flag. While fighting fish in general may not spark a lot of interest, their shared neurobiology with humans means this could be a very significant discovery.