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Then came the goldfish heist. NEW YORK (AP) — A couple of longtime Brooklyn residents were lounging in the heat last week, staring at a sidewalk tree pit often flooded by a leaky fire hydrant ...
Fish retinas generally have both rod cells and cone cells (for scotopic and photopic vision), and most species have colour vision. Some fish can see ultraviolet and some are sensitive to polarised light. Among jawless fishes, the lamprey [1] has well-developed eyes, while the hagfish has only primitive eyespots. [2]
Full-spectrum light is light that covers the electromagnetic spectrum from infrared to near- ultraviolet, or all wavelengths that are useful to plant or animal life; in particular, sunlight is considered full spectrum, even though the solar spectral distribution reaching Earth changes with time of day, latitude, and atmospheric conditions.
An aquarium can be placed on an aquarium stand. Because of the weight of the aquarium, a stand must be strong as well as level. A tank that is not level may distort, leak, or crack. [46] These are often built with cabinets to allow storage, available in many styles to match room decor. Simple metal tank stands are also available. [46]
Vision is an important sensory system for most species of fish. Fish eyes are similar to those of terrestrial vertebrates like birds and mammals, but have a more spherical lens. Their retinas generally have both rod cells and cone cells (for scotopic and photopic vision), and most species have colour vision.
The appearance of peanut-sized fish swimming around the shallow basin quickly became a neighborhood curiosity, drawing visitors who dubbed it “the Hancock Street Bed-Stuy Aquarium.” But as videos and news stories about the fish pit have circulated online, the project has drawn concern from city officials and backlash from animal rights ...
The visible spectrum; far-red is located at the far right. Far-red light is a range of light at the extreme red end of the visible spectrum, just before infrared light. Usually regarded as the region between 700 and 750 nm wavelength, it is dimly visible to human eyes. It is largely reflected or transmitted by plants because of the absorbance ...
The visible spectrum is the band of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths is called visible light (or simply light). The optical spectrum is sometimes considered to be the same as the visible spectrum, but some authors define the term more broadly, to include the ...
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