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Ranging in color from dark gray to dark brown, deep-sea species have large heads that bear enormous, crescent-shaped mouths full of long, fang-like teeth angled inward for efficient prey-grabbing. Their length can vary from 2–18 cm (1–7 in), with a few types getting as large as 100 cm (39 in), [ 15 ] but this variation is largely due to ...
The speed of light in vacuum, commonly denoted c, is a universal physical constant that is exactly equal to 299,792,458 metres per second (approximately 300,000 kilometres per second; 186,000 miles per second; 671 million miles per hour).
The Saharan silver ant (Cataglyphis bombycina) is a species of insect that lives in the Sahara Desert.It is the fastest of the world’s 12,000 known ant species, clocking a velocity of 855 millimetres per second (over 1.9 miles per hour or 3.1 kilometres per hour).
This light is then reflected out through the photophore aperture, where it passes through a brown filter, yielding a far-red light with a maximum absorbance at 708 nm (almost infrared). In live fish, the suborbital and postorbital photophores both flash vigorously, the suborbital at a slower rate.
The photophore uses bioluminescence to produce light to entice a victim. The prey is attracted to the flickering light like a fishing lure. Along with the extended photophore on the dorsal fin, the viperfish also carries photophores on side and underneath its body. The lights underneath provide a camouflage to fish from below. [7]
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90 Easy Bite-Sized Appetizer Recipes PHOTO: JOSEPH DE LEO; FOOD STYLING: MAKINZE GORE
Fig. 1: Underwater plants in a fish tank, and their inverted images (top) formed by total internal reflection in the water–air surface. In physics, total internal reflection (TIR) is the phenomenon in which waves arriving at the interface (boundary) from one medium to another (e.g., from water to air) are not refracted into the second ("external") medium, but completely reflected back into ...