Showing posts with label shark bay. Show all posts
Showing posts with label shark bay. Show all posts

Monday, January 9, 2012

Basking Shark

Photo by Chris Gotschalk
The basking shark (Cetorhinus maximus) opens wide to feed on plankton.  But don't be afraid, although it is the second largest living fish, after the whale shark, the basking shark is a slow, filter feeder and is generally considered harmless.

Friday, January 6, 2012

The Most Ancient Records of Life on Earth

Photo by Mark I Geo
On Shark Bay, Western Australia, a great shot of stromatolites,layered accretionary structures formed in shallow water by cementation of sedimentary grains by biofilm of microorganisms, they provide the most ancient records of life on earth.