How Many Orcas Left in the World

How Many Orcas Left in the World

How Many Orcas Left in the Worldを徹底追究! 読者が気になる 重要ポイントを凝縮して配信します。

You might also hear about the 60 or so orcas stuck in marine parks like SeaWorld. Those are not wild orcas. They are effectively prisoners, and they don’t count toward the wild population.

In fact, the captive population is a whole different, sad statistic. They live shorter lives, have collapsed dorsal fins, and are basically the orca equivalent of being in a very small, noisy room forever. We don’t count them as ‘left’ in the world.

And hey, good news on that front: public opinion is shifting. Fewer people want to see these giants do tricks in a bathtub-sized tank. Orcas are meant for blue water, not blue plastic pools.

How Do We Even Count Them?

You might be wondering: “Did someone sit in a helicopter with a clipboard?” Kind of! Scientists use photo-identification. Each orca has a unique saddle patch (the grey area behind the dorsal fin). It’s like a fingerprint.

They also use drones, underwater microphones, and even poop-sniffing dogs. Yes, poop-sniffing dogs. Because if you want to know if an orca is healthy, you follow the smell. Science is weird and wonderful.

So the number “50,000” is an educated guess from all those photos, poop samples, and hydrophones. It’s probably in the ballpark, but orcas are notoriously good at hiding. They’re the ninjas of the sea.

How Many Killer Whales Are Left West Coast Community Killer WhalesHow Many Killer Whales Are Left West Coast Community Killer Whales

伊藤 翔太
Author

伊藤 翔太

マネー知識やキャリア形成に役立つノウハウを、初心者にも分かりやすく解説するのが得意です。