Search results
Results from the WOW.Com Content Network
When in breeding condition, the males' eyes turn red. After the female lays her eggs, the male fertilizes the eggs and aggressively defends the nest, eggs and fry from any intruder-including other females. Males are most commonly found defending the nest for up to five days later until the fry have hatched. [10]
Similar effects, some related to red-eye effect, are of several kinds: In many flash photographs, even those without perceptible red-eye effect, the tapetum lucidum of many animals' pupils creates an "eyeshine" effect. Although eyeshine is an unrelated phenomenon, animals with blue eyes may display the red-eye effect in addition to it.
The adult Indian muntjac (Muntiacus muntjac) is a solitary animal, other than during the rut (mating season) and for the first six months after giving birth. Adult males in particular are widely separated. Marking grass and bushes with secretions from their preorbital glands appears to be involved in the acquisition and maintenance of territory ...
The irises of human eyes exhibit a wide spectrum of colours. Eye color is a polygenic phenotypic trait determined by two factors: the pigmentation of the eye's iris [1] [2] and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris. [3]: 9
“Cherry eye is a common eye condition in dogs where a gland in the third eyelid pops out and swells up, making it look like a red, swollen ‘cherry’ in the corner of the eye,” says Dr. Hood.
From his experiences in wartime Ghana, Ridley described snake venom ophthalmia in a 30-year-old labourer, who was cutting grass when a Black-necked cobra spat venom toward the man's right eye from a four- or five-feet distance. Ridley treated the man and followed his case until the eye had fully recovered – after about a week.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Very dark-red (#29) filters block out almost all blue, and visually opaque (#70, 89b, 87c, 72) filters block out all blue and also visible red wavelengths, resulting in a more pure-infrared photo with a more pronounced contrast. Instead of the Wratten number, some manufacturers embed the transition or cutoff wavelength in the name of the filter.