One of the more unusual and distinctive sharks due to its namesake elongated upper caudal fin or tail, it is believed that the shark might use its tail as a hunting device to stun schooling fish. The thresher shark is a popular seafood item in many forms - fresh, dried, salted - and so it's numbers have suffered (all three thresher shark species are listed as "vulnerable" by the IUCN).
Here's a post from the Shark Divers blog, discussing one of the few shark organizations devoted to the thresher shark. Based in the Philippines where considerable local fishing, commercial and, sometimes, illegal fishing takes place, this group has their work cut out for them.
Of the myriad of shark conservation sites worth visiting, none come better then the Thresher shark research & conservation project.
We have been following this site for the past year and are always happy with the vibrant field updates, images, video and news.
Consider taking the time to get to know the team behind the Thresher shark research & conservation project.
Shark conservation efforts are hard enough to get traction with; in places like the Philippines, it's doubly so.
It's takes determination, good outreach, and a serious research program to make a difference.