#sharkscience Mercury levels in muscle & liver tissue of rays varies between species: liver is not always most toxic http://t.co/oCrfelbQF9
#sharkscience Mercury levels in muscle & liver tissue of rays varies between species: liver is not always most toxic http://t.co/oCrfelbQF9
#sharkscience Mercury levels in muscle & liver tissue of rays varies between species: liver is not always most toxic http://t.co/oCrfelbQF9
Cownose rays in Mexico have high mercury concentrations. #SharkScience http://t.co/UoaHx57QR2
Cownose rays in Mexico have high mercury concentrations. #SharkScience http://t.co/UoaHx57QR2
#sharkscience Mercury levels in muscle & liver tissue of rays varies between species: liver is not always most toxic http://t.co/oCrfelbQF9
#sharkscience Mercury levels in muscle & liver tissue of rays varies between species: liver is not always most toxic http://t.co/oCrfelbQF9