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Fortunately, our dogs don’t know when we share their embarrassing moments online. Otherwise, no matter how good-natured they are, we may need to start sleeping with one eye open. Show comments
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.
Carotenosis is a benign and reversible medical condition where an excess of dietary carotenoids results in orange discoloration of the outermost skin layer. The discoloration is most easily observed in light-skinned people and may be mistaken for jaundice. [ 1][ 2]: 540 [ 3]: 681 Carotenoids are lipid-soluble compounds that include alpha- and ...
Blindness in animals. 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 ...
Barry Jackson holds Molly, a 13-year-old blind beagle who is riding in a trailer with her humans on RAGBRAI, in Greenfield, July 23, 2024. And when the pair does stop, someone sticks with the dog ...
Evolution of color vision in primates. Baboons, like other old world monkeys and apes, have eyes which can discern blue, green and red wavelengths of light. The evolution of color vision in primates is highly unusual compared to most eutherian mammals. A remote vertebrate ancestor of primates possessed tetrachromacy, [ 1] but nocturnal, warm ...
The post ‘Puppy-Dog Eyes’ Didn’t Evolve Just for Humans, Study Shows appeared first on DogTime. Pet parents would agree that it is hard to resist puppy-dog eyes. A recent study proved that ...
The carrot ( Daucus carota subsp. sativus) is a root vegetable, typically orange in color, though heirloom variants including purple, black, red, white, and yellow cultivars exist, [ 2][ 3][ 4] all of which are domesticated forms of the wild carrot, Daucus carota, native to Europe and Southwestern Asia. The plant probably originated in Iran and ...