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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.
It lets light through without refraction, helps maintain the shape of the eye and suspends the delicate lens. In some animals, the retina contains a reflective layer (the tapetum lucidum) which increases the amount of light each photosensitive cell perceives, allowing the animal to see better under low light conditions.
The pupil is a hole located in the center of the iris of the eye that allows light to strike the retina. [1] It appears black because light rays entering the pupil are either absorbed by the tissues inside the eye directly, or absorbed after diffuse reflections within the eye that mostly miss exiting the narrow pupil.
Pupils of Vera Chaplina at the Enclosure for baby animals. Moscow Zoo, 1937. Over the years Vera Chaplina and her family played host at home to a number of animals — wolves, a leopard, a lynx and a lion cub named Kinuli. Kinuli in Russian means “was abandoned”, as the cub had been abandoned by her mother. Vera Chaplina saved the cub.
The Palawan binturong inhabits tropical rainforest habitat. It is an omnivore, feeding on fruit, small animals, and carrion. [2] It is solitary and mostly active at night; it is arboreal, living in forests, including rainforests, as well as agricultural areas and close to human settlements.
Environmental issues due to Indonesia's rapid industrialisation process and high population growth, have seen lower priority given to preserving ecosystems. [3] Issues include illegal logging, with resulting deforestation, and a high level of urbanisation, air pollution, garbage management and waste water services also contributing to the forest deterioration.
The average length of an adult is 1.3 metres (4.3 ft), but they can grow to a maximum of around 1.85 metres (6.1 ft). The head is elliptical, slightly different from the neck with a short rounded snout and large nostrils. Its eyes are of moderate size, with round pupils. The dorsal scales are smooth and very oblique.
This page was last edited on 28 November 2021, at 07:54 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.