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The nictitating membrane of a masked lapwing as it closes over the left eye, originating from the medial canthus. The nictitating membrane (from Latin nictare, to blink) is a transparent or translucent third eyelid present in some animals that can be drawn across the eye from the medial canthus to protect and moisten it while maintaining vision.
Leucistic white lions owe their colouring to a recessive allele. Note the eyes and lips remain the normal colour. Note the eyes and lips remain the normal colour. Studies have shown that the reduced pigment comes from a mutation in the gene for tyrosinase , the same as causes Type I oculocutaneous albinism in humans. [ 1 ]
The American lion (Panthera atrox (/ ˈ p æ n θ ər ə ˈ æ t r ɒ k s /), with the species name meaning "savage" or "cruel", also called the North American lion) is an extinct pantherine cat native to North America during the Late Pleistocene from around 130,000 to 12,800 years ago.
The lion (Panthera leo) is a large cat of the genus Panthera, native to Africa and India. It has a muscular, broad-chested body; a short, rounded head; round ears; and a dark, hairy tuft at the tip of its tail. It is sexually dimorphic; adult male lions are larger than females and have a
Inherited eyelash problems are common in some breeds of dogs as well as horses. Eyelashes are an uncommon but not unknown feature in birds. Hornbills have prominent eyelashes (vestigial feathers with no barbs), as do ostriches. Amongst the reptiles, only Eyelash vipers show a set of modified scales over the eyes which look much like eyelashes.
Trichomegaly is a condition in which the eyelashes are abnormally long, [1] objectively defined as 12mm or greater in the central area and 8mm in the peripheral. [2] The term was first used by H. Gray in 1944 in a publication in the Stanford Medical Bulletin, [2] though he was only the third person to characterize the disorder; the first two reports were published in German in 1926 and 1931 by ...
In 1844, lions were sighted south of the Riet River. The last lions south of the Orange River were sighted between 1850 and 1858. In the northern Orange Free State, lions may have survived into the 1860s. [1] In 2003, six lions from Kgalagadi Transfrontier Park were relocated to Addo Elephant National Park in the Eastern Cape Province. [23]
Young lion (Panthera leo) cubs have rosette patterns on their legs and abdomen regions. These rosettes usually do not transfer into adulthood and fade as the cub ages. However, some mature lions may keep traces of their rosette patterns throughout life. [5] For the lion cub, the rosette markings act as camouflage in long grasses and bushes. [6]