Example 5cAll images copyright protected, © Doug Segar and Elaine Stamman Segar.

Just in case you are still finding it hard to make out the seahorse in
the previous photograph, here is another photograph of the head of the
same seahorse taken in such a manner as to maximize the contrast between
it and its background.
The eye is generally the easiest part of an animal to distinguish. It
is also the most difficult to camouflage. However, note the radial markings
around the eye of this seahorse. This type of marking is often found around
the eye in camouflaged species. They make the eye less obvious by presenting
several other similarly dark colored patches of different shapes around
the eye itself. The radial pattern may also tend to confuse potential
predators. Since many species of fish and invertebrates have vision very
different from our own (for example, many do not see things in sharp focus
as we do, and some see only polarization of light), it is very difficult
to investigate and confirm such hypotheses.
|