-
seals and aardvarks) have full
nictitating membranes; in many
other mammals, a small,
vestigial portion of the
nictitating membrane remains in the corner...
- have a full
translucent third eyelid called a
nictitating membrane,
while others have a
vestigial nictitating membrane. The
membrane works to
protect and...
- Birds,
reptiles and
sharks blink with a
nictitating membrane from one side of the eye to the other....
- the eyeball,
restricting movement. It is the
vestigial remnant of the
nictitating membrane (the "third eyelid")
which is
drawn across the eye for protection...
- fishes,
generally characterized by
lacking traits such as an anal fin,
nictitating membrane, or
suborbital shelves in the cranium.
Squalomorphii sharks...
-
rather than
representing true
trichromatic vision. Cats also have a
nictitating membrane,
allowing them to
blink without hindering their vision. The...
-
luxating patella, hip dysplasia, and Legg-Calvé-Perthes disease.
Prolapsed nictitating membrane gland is also
common in
puggles despite not
being prevalent...
-
Instead the eye is
lubricated by the
nictitating membrane, a
third eyelid that
moves horizontally. The
nictitating membrane also
covers the eye and acts...
- eyes with
vertical slits. They do not have a true eyelid, but
rather a
nictitating membrane that
allows light to
enter the eye so that they will awaken...
- Owl eyes each have
nictitating membranes that can move
independently of each other, as seen on this
spotted eagle-owl in Johannesburg,
South Africa....
