Slow growing and highly susceptible to fishing pressures, devil and manta rays are fast becoming one of the most vulnerable animals in our ocean.
Controls on fishing and trade are severely lacking. And demand for the devils' gill plates - the tight knit feathery structures these filter feeders use to strain plankton - is rising. The market for a Chinese health tonic - where the gill plates are used - has created an incentive to fish for these vulnerable species. And it's profitable, with even small gill plates fetching $133 per kg.
Find out more and discover what you can do to help save devil and manta rays. Watch this video and share with your friends.