ナショナルジオグラフィックさんのインスタグラム写真 - (ナショナルジオグラフィックInstagram)「Photo by Cristina Mittermeier @Mitty | Oceanic whitetip sharks once ruled the seas as the most abundant predator. Today they’re nearly gone. Hunted for their fins and often hooked as bycatch by commercial longline vessels fishing for tuna, oceanic whitetip sharks are in trouble. They have very few offspring and don’t reach sexual maturity until around seven years old—traits that impede population recovery. In a Hong Kong seafood market, dried fins can fetch $265 a pound. Follow me @Mitty for images that challenge the mainstream understanding of sharks and how to create change for healthy oceans no matter how close or far you live to the sea. #CITES4Sharks #ExtinctionEndsHere #Bahamas #TurningTheTide #Conservation」2月16日 12時34分