The above is may look like something you would see under the sea, but actually it is crocheted facsimile.
The Sydney Hyperbolic Crochet Coral Reef was exhibited in August, 2009 part of a global project
Sydney Hyperbolic Crochet Reef Project
The works are amazing and worth a few minutes of your time to check them out.
Images by Claire Conroy
To learn more about the project see: The Institute for Figuring