Invisible Killer

We all know coming face-to-face with a 6,000 lb. great white shark with sharp serrated teeth would be a less than desirable situation. But what if it’s a creature the size of a finger-nail and nearly invisible? The irukandji is a member of the box jellyfish family and is often considered one of the deadliest creatures in the sea. Until the mid 1960s, its very existence, and its threat to humans, was completely unknown. They have tentacles up to three feet long covered with millions of nematocysts or venomous barbs. Even worse, a victim is usually left with no pain, no marks and often no clue that they have been stung until 30 minutes later, when the toxins reach the heart and nervous system.

Asia-Pacific’s Deadly Dozen airs on Nat Geo Wild Sunday July 18 at 10P et/pt.

Video Preview: These teeny tiny jellyfish may look cute and harmless, but their sting packs a wallop of paralysis and pain.


  1. TeaZrnic
    June 12, 2010, 10:03 pm

    Beautiful animal! love it. <3

  2. legoless
    June 12, 2010, 11:10 pm

    Evil things…

  3. Samina Rahman
    June 13, 2010, 5:57 am

    Absolutely marvellous!!! 🙂 I loved the irukandji…..deadly though…:O
    We never know what is hiding…
    beneath the dark sea

  4. Aaron2030
    July 11, 2010, 9:01 pm

    Very interesting, it’s a good thing no ones gone comando, well i hope not