Not what it seems!
This is an utterly unintentional optical illusion. It appears that the centre of the image stands up but it is, in fact, a small 'crater'.
The image is of a 20mm square part of a Cuttlefish I found on Skar Beach, port Talbot.
I t has a small indentation that I suspect is the result of some burrowing parasite. The item had been on the beach long enough for there to be algae growing & thus highlighting the contours in the original shell growth.
Natural for Macro Mondays
Not what it seems!
This is an utterly unintentional optical illusion. It appears that the centre of the image stands up but it is, in fact, a small 'crater'.
The image is of a 20mm square part of a Cuttlefish I found on Skar Beach, port Talbot.
I t has a small indentation that I suspect is the result of some burrowing parasite. The item had been on the beach long enough for there to be algae growing & thus highlighting the contours in the original shell growth.
Natural for Macro Mondays