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The axolotl ( / ˈæksəlɒtəl / ⓘ; from Classical Nahuatl: āxōlōtl [aːˈʃoːloːtɬ] ⓘ) ( Ambystoma mexicanum) [ 3] is a paedomorphic salamander closely related to the tiger salamander. [ 3][ 4][ 5] It is unusual among amphibians in that it reaches adulthood without undergoing metamorphosis. Instead of taking to the land, adults ...
In this way they divide the single life-death process of cyclical transformation into its two phases: one leading from birth to death, the other from death to birth. [9] Xolotl was the patron of the Mesoamerican ballgame. Some scholars argue the ballgame symbolizes the Sun's perilous and uncertain nighttime journey through the underworld. [9]
Planes can withstand the weather. Next time you’re flying through turbulence, look out the window at the wing. You’ll notice it flexing. It’s supposed to do that. The flex actually helps the ...
The detached retina was caused by a cancerous tumor that had wrapped around Hensley’s optic nerve. She was diagnosed with ocular melanoma that began when the freckle in the back of her eye ...
Jackson told the New York Times that “the dressing bulked up a bit because you need a bit of absorbent. You don’t want to be walking around with bloody gauze on his ear.”. Donald Trump ...
Hearing, vibration, and the lateral line. Hearing is an important sensory system for most species of fish. For example, in the family Batrachoididae, males use their swim bladders to make advertisement calls which females use to localize males. Hearing threshold and the ability to localize sound sources are reduced underwater, in which the ...
Asbestos. Asbestos was used in lots of products, from insulation to automobile clutch fittings, fake snow, fire-resistant clothing, and building materials. The naturally-occurring mineral fiber ...
In vertebrate eyes, the nerve fibers route before the retina, blocking some light and creating a blind spot where the fibers pass through the retina. In cephalopod eyes, the nerve fibers route behind the retina, and do not block light or disrupt the retina. 1 is the retina and 2 the nerve fibers. 3 is the optic nerve. 4 is the vertebrate blind ...