A couple of months ago I blogged about Shark Perils, showing a great infographic from Josh Aggars. Josh has gone one better, and created a new infographic that shows the shocking truth behind shark extinction.
Shark numbers are in decline, and as the apex predator in the oceanic realm, the survival of the shark species may be directly linked to that of humanity. Humans rely on protein to survive and grow, and the oceanic food chain is the major source of protein for a majority of the planet's population. Killing off of sharks throws that food chain into unbalance, and without that food chain, we may not have sufficient protein to maintain the survival of our species. Imagine a world with "protein wars" - people fighting not over oil or money, but protein.
This may sound alarmist, but as a keen diver I do believe that "the only good shark is NOT a dead shark".
As a dive instructor, consider teaching the important role that sharks play through the new AWARE Shark Conservsation Instructor Course.