Please register and log-in to create and edit pages

User Tools

    Please register and log-in to create and edit pages

Site Tools

Main Menu

Main menu
Click categories to expand

A-Z listingplugin-autotooltip__plain plugin-autotooltip_bigA-Z listing

This is an alphabetical index of all content pages.

Other categories



Also see

Importance Ratings

Wikenigma supports:

Feeds etc
rss / xml feed
sitemap file
A-Z listing (archived)

Wikenigma - an Encyclopaedia of Unknowns Wikenigma - an Encyclopaedia of the Unknown Science

Anemonefish Symbiosis

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 association with sea anemones.

The anemones have a highly toxic defence mechanism which is powerful enough to rapidly kill any other small fish.

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

    Share this page :


Dear reader : Do you have any suggestions for the site's content?

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.)

Show another (random) page