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The dark blue, teal, and gold tapetum lucidum from the eye of a cow Retina of a mongrel dog with strong tapetal reflex. The tapetum lucidum (Latin for 'bright tapestry, coverlet'; / t ə ˈ p iː t əm ˈ l uː s ɪ d əm / tə-PEE-təm LOO-sih-dəm; pl.: tapeta lucida) [1] is a layer of tissue in the eye of many vertebrates and some other animals.
The eye of a horse. The equine eye is one of the largest of any land mammal. [1] Its visual abilities are directly related to the animal's behavior; for example, it is active during both day and night, and it is a prey animal. Both the strengths and weaknesses of the horse's visual abilities should be taken into consideration when training the ...
NBC’s TODAY is a news program that informs, entertains, inspires and sets the agenda each morning for Americans, starting at 7 a.m. Want to know more about hosts Savannah Guthrie, Craig Melvin ...
Animal reflectors or animal mirrors are important to the survival of many kinds of animal, and, in some cases, have been mimicked by engineers developing photonic crystals. Examples are the scales of silvery fish, and the tapetum lucidum that causes the eyeshine of dogs and cats. All these reflectors work by interference of light in multilayer ...
Visual perception in animals plays an important role in the animal kingdom, most importantly for the identification of food sources and avoidance of predators. For this reason, blindness in animals is a unique topic of study. In general, nocturnal or subterranean animals have less interest in the visual world, and depend on other sensory ...
Hoda Kotb’s tenure on the Today show was full of many memorable moments.. The TV personality announced in September 2024 that she would be departing the iconic morning show after 26 years on NBC ...
In very bright light, the slit-like pupil closes very narrowly over the eye, reducing the amount of light on the sensitive retina, and improving depth of field. Big cats have pupils that contract to a round point. Variation in color of cats' eyes in flash photographs is largely due to the reflection of the flash by the tapetum. A closeup of a ...
Bright and early on Jan. 23, 2025, 50 new movies were given the prestigious title "Oscar Nominee." From big-budget studio films like Wicked and sci-fi movies like Kingdom of the Planet of the Apes ...