Uploaded November 2022 | Updated September 2026, 1 hour ago

---

At first glance, this bobbing, bubble-like creature looks like a jellyfish. But don't be fooled by its spindly tentacles and translucent body because it's definitely not a jellyfish. This is a Portuguese man o' war. And it's extremely dangerous.

00:00 Portuguese Man O' War
04:36 Bearded Fireworm
08:40 5 Deadliest Mushrooms
13:15 Porcupines


Questions or concerns? Contact us at underknown.com/contact

Produced by the makers of What If. Check out our other channels:
What If - bit.ly/youtube-What-If
How to Survive: bit.ly/how-to-survive-show
Aperture: bit.ly/aperture-show
Your Body On: bit.ly/your-body-on-show
Origins of Food: bit.ly/origins-of-food
Versus: bit.ly/versus-show
WTF Did I Just Watch: bit.ly/wtf-did-i-just-watch

Crazy Creatures presents the incredible wonders of animal diversity and takes you to some of the most remote and hostile corners of the globe in order to find the ugliest, slimiest and downright weird creatures that grace the planet.

An Underknown show: underknown.com
Contact us at underknown.com/contact

#crazycreatures
#donttouch
#creatures