- The
nictitating membrane (from
Latin nictare, to blink) is a
transparent or
translucent third eyelid present in some
animals that can be
drawn across...
-
rather than
representing true
trichromatic vision. Cats also have a
nictitating membrane,
allowing them to
blink without hindering their vision. The...
- Birds,
reptiles and
sharks blink with a
nictitating membrane from one side of the eye to the other....
- have a full
translucent third eyelid called a
nictitating membrane,
while others have a
vestigial nictitating membrane. The
membrane works to
protect and...
-
Instead the eye is
lubricated by the
nictitating membrane, a
third eyelid that
moves horizontally. The
nictitating membrane also
covers the eye and acts...
- Owl eyes each have
nictitating membranes that can move
independently of each other, as seen on this
spotted eagle-owl in Johannesburg,
South Africa....
-
luxating patella, hip dysplasia, and Legg-Calvé-Perthes disease.
Prolapsed nictitating membrane gland is also
common in
puggles despite not
being prevalent...
- submerged. The
nostrils and ears have
valves that
close underwater,
while nictitating membranes cover the eyes. To
protect the
larynx and
trachea from water...
- and are able to
judge depth under water accurately. They also have
nictitating membranes that
cover the eyes to
protect them when they hit the water;...
-
protect their eyes. As in many
mammals and birds,
pinnipeds possess nictitating membranes. The
pinniped ear is
adapted for
hearing underwater, where...
