The Orange clownfish - Amphiprion percula - (also known as the Percula clownfish and Clown anemonefish), is widely-known as a popular aquarium fish. Like other clownfishes (also known as Anemonefishes), it often lives in close association with sea anemones.
The anemones have a highly toxic defence mechanism which is powerful enough to rapidly kill any other small fish which come into contact with their tentacles.
The clownfishes symbiotically live amongst the anemone tentacles, semi-permanently, with no apparent damage. There is currently no agreed explanation as to how they do this.
There are several hypotheses : including the theory that the fish are protected by a mucous layer, or that they have an 'acquired immunity' of some kind.
Further info at Wikipedia
Ideas for new topics, and suggested additions / corrections for old ones, are always welcome.
If you have skills or interests in a particular field, and have suggestions for Wikenigma, get in touch !
Or, if you'd like to become a regular contributor . . . request a login password. Registered users can edit the entire content of the site, and also create new pages.
( The 'Notes for contributors' section in the main menu has further information and guidelines etc.)
You are currently viewing an auto-translated version of Wikenigma
Please be aware that no automatic translation engines are 100% accurate, and so the auto-translated content will very probably feature errors and omissions.
Nevertheless, Wikenigma hopes that the translated content will help to attract a wider global audience.