Oceanic Whitetip Shark: From Most Abundant Predator to Near Extinction

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In 1969, scientists described the oceanic whitetip as perhaps the most abundant large animal on Earth, and Jacques Cousteau called it the most dangerous of all sharks. Today it has all but vanished from much of its historic range. This episode follows Carcharhinus longimanus, the long hands of the sea, through the biology that let it rule the open ocean: huge paddle shaped pectoral fins for slow, efficient gliding, countershaded camouflage, and a mouth that pairs thin spiked lower teeth with broad serrated upper blades.

In a biological desert where the next meal may be hundreds of miles away, the whitetip survives on boldness. It glides through tuna feeding frenzies with its jaws open, bullies faster silky sharks off food, and trails ships for days. That same drive to investigate every disturbance made it the shipwreck shark of World War II and then the perfect victim of longline fishing and the fin trade. The global population has fallen by an estimated 98 percent.

Sucker scars on a whitetip filmed off Hawaii show these surface cruisers dive deep enough to tangle with giant squid.
Biologists attribute most of the shark attacks on survivors of the RMS Nova Scotia in 1942 and the USS Indianapolis in 1945 to this species.
A 2010 cluster of attacks near Sharm el-Sheikh in Egypt was traced to a single shark conditioned by illegal hand feeding from dive operators.
Gulf of Mexico catch data from the 1950s to the 1990s show a 99.3 percent decline, with average weight falling from about 190 pounds to 124.
An Appendix 1 listing under CITES, passed with 83 percent of the vote and taking effect in November 2025, effectively bans international commercial trade.

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