this post was submitted on 28 Jun 2024
150 points (98.7% liked)
aww
19766 readers
29 users here now
A place with minimal rules for stuff that makes you go awww! Feel free to post pics, gifs, or videos of cats, dogs, babies, or anything cute and remember to be kind to others.
AI posts must be labeled [AI] in the title and are limited to one per week.
While posting and commenting in this community, you must abide by instance-wide rules: https://mastodon.world/about
- No racism or bigotry.
- Be civil: disagreements happen, but thatdoes not provide the right to personally insult others.
- No SPAM posting.
- No trolling of others.
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
They look dangerous. Are they?
That's a Blue Dragon (Glaucus atlanticus). They can eat the nematocysts from jellyfish and store them to reuse as their own stinging cells. So..."dangerous," not really but as painful as they are beautiful...oh yes.
You don’t consider stinging jellyfish as dangerous?
What? No one is comparing them. The question was asked, are they dangerous? OP mused that they have no natural weapons, or danger per se, but instead borrow the jellyfish’s defense. So they are painful in their defense. Likely not aggressive.
“Despite the unsavory or toxic taste they can present to their non-human predators, most nudibranchs are harmless to humans, except those like Glaucus atlanticus which consumes nematocytes and so may consider you a predator and sting”
https://www.thoughtco.com/facts-about-nudibranchs-2291859#:~:text=Despite%20the%20unsavory%20or%20toxic,you%20a%20predator%20and%20sting.
I see now. Thanks
Of course.
This particular species does sting, so I would argue it is dangerous. But its mechanism is super interesting: it eats the stinging cells from jellyfish, absorbs them into its own body, and uses them to sting others the same way. Some even release acid. Incredible!