-
seals and aardvarks) have full
nictitating membranes; in many
other mammals, a small,
vestigial portion of the
nictitating membrane remains in the corner...
-
Instead the eye is
lubricated by the
nictitating membrane, a
third eyelid that
moves horizontally. The
nictitating membrane also
covers the eye and acts...
- have a full
translucent third eyelid called a
nictitating membrane,
while others have a
vestigial nictitating membrane. The
membrane works to
protect and...
-
levels rather than
representing true
trichromatic vision. Cats have a
nictitating membrane,
allowing them to
blink without hindering their vision. The...
-
protrude from the water. Each eye has
closable upper and
lower lids and a
nictitating membrane which provides further protection,
especially when the frog...
-
especially in
animals without eyelids. In
squamate reptiles both the
nictitating membrane and the
eyelids have been
suggested as the
evolutionary origin...
- sharks.
Members of this
order are
characterized by the
presence of a
nictitating membrane over the eye, two
dorsal fins, an anal fin, and five gill slits...
-
luxating patella, hip dysplasia, and Legg-Calvé-Perthes disease.
Prolapsed nictitating membrane gland is also
common in
puggles despite not
being prevalent...
- fishes,
generally characterized by
lacking traits such as an anal fin,
nictitating membrane, or
suborbital shelves in the cranium.
Squalomorphii sharks...
- Birds,
reptiles and
sharks blink with a
nictitating membrane from one side of the eye to the other....
