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Showing posts with the label eyes

Wild Cat

"Be afraid. Be very afraid!" http://vistacomputersolutions.blogspot.com/ . . . . . . . . . . . . . . . . . . Funny Animal Photos

No Night Darkness in the Infrared

Human beings perceive objects by seeing in the "normal" optical range. This is purely an evolutionary imperative. Evolution could just as easily given us eyes that work in the infrared to know what is going on around us. If this was the case we would experience no night at all. The night sky would be just as clear as the sky in the day. At night the sky would be lit by hydroxyl molecules emitting infrared light in the form of a mass of narrow emission lines. It would be like daylight, though a few stars could be seen along with the Sun and the Moon. Telescopes operating in the infrared get over this problem by using limited apertures and special filters. These filters use a photonic lantern system to move the light into parallel tracks. A Bragg filter reflects out the tracks and lets wavelengths between lines through. Many IR telescopes are in space where such a filter is unnecessary. The space telescopes beam data back to Earth. http://www.adventure--australia.bl

Ancient Large Predator With Strange Eyes Found

Weird eyes of an ancient ocean predator have been found in Australia. It was believed that all types of eyes were known. The creature with the unusual eyes has been identified. It was an anomalocaris, a very large shellfish. They didn't see the world like whales or even fish. Each eye had 16,000 lenses and was three centimeters in diameter. This is more than the 3,000 lense housefly eye, but not as numerous as the dragonfly eye with its 30,000 lenses. Make no mistake though - eye development was like an arms race, the animals with superior eyes reproducing and surviving. The anomalocaris was a good hunter, moving quickly on their prey in clear waters. This ancient hunter had an odd shape. It had spined claws on each side of the body and two giant claws on its head. Its eyes were on stalks. The mouth was circular with serrations around the edge pointing inward. The site where it was found, on Kangaroo Island, holds more strange animals to be investigated. These were the ea

How Many Finger?

"How many am I holding up? " "FIVE fingers!" "No, four and a thumb." http://vistacomputersolutions.blogspot.com/ . . . . . . . . . . . . . . . . . . Funny Animal Photos

Cats Only

"Hey cats only here!" http://vistacomputersolutions.blogspot.com/ . . . . . . . . . . . . . . . . . . Funny Animal Photos

Dog Eyes

"Don't tell me! It's something about my eyes." http://vistacomputersolutions.blogspot.com/ . . . . . . . . . . . . . . . . . . Funny Animal Photos

Angry Dog Look

"You should be very afraid." http://vistacomputersolutions.blogspot.com/ . . . . . . . . . . . . . . . . . . Funny Animal Photos

Cat Did It

"Yeah, it was me." http://vistacomputersolutions.blogspot.com/ . . . . . . . . . . . . . . . . . . Funny Animal Photos

Sloth no Photo

"Lemur day off - no photos please." http://vistacomputersolutions.blogspot.com/ . . . . . . . . . . . . . . . . . . Funny Animal Photos

Dog Biscuit

"I'll take just one." http://vistacomputersolutions.blogspot.com/ . . . . . . . . . . . . . . . . . . Funny Animal Photos

Dog Watch

"I know, you know I'm here!" http://vistacomputersolutions.blogspot.com/ . . . . . . . . . . . . . . . . . . Funny Animal Photos

Overlooked Kitten

"Hey, I'm down here!" http://vistacomputersolutions.blogspot.com/ . . . . . . . . . . . . . . . . . . Funny Animal Photos

Eye Size Is Determined by Distance From the Equator

Eye Size is not accidental. It is determined by evolutionary factors. This is not so obvious today because in the twentieth century people moved to new countries in regions quite different from their place of origin. Eye sockets were measured from 55 skulls of native people throughout the world. The skulls were in museum collections from the 1800s. Large eyes were synonymous with large craniums. The native population of Micronesia had the smallest eyes. Scandinavians had the largest. This is contrary to the belief that Africans have the largest eyes. Eyes size is affected by the length of day and sun brightness. Bigger craniums were due to more brain allocation to sight. It did not make people smarter. This finding must mean that being able to get about in low light was important for survival. Features important for survival until the age of reproduction are carried on to later generations. Some things, however, can remain in a population if they affect life after puberty,

Hypnotic Squirrel

"You are coming under my spell." http://vistacomputersolutions.blogspot.com/ ~~~~~ Funny Animal Photos ~~~~~ . . . . . . . . . . . . . . . . . .

Frightened Mouse

"Don't throw it." http://vistacomputersolutions.blogspot.com/ ~~~~~ Funny Animal Photos ~~~~~ . . . . . . . . . . . . . . . . . .

Cat Light

"Let me light up your life." http://vistacomputersolutions.blogspot.com/ ~~~~~ Funny Animal Photos ~~~~~ . . . . . . . . . . . . . . . . . .

Animal Bath

"Hey get out! I'm taking a bath." http://vistacomputersolutions.blogspot.com/ ~~~~~ Funny Animal Photos ~~~~~ . . . . . . . . . . . . . . . . .

Cat–Mouse Is Mine

“Hand it over. You know it’s mine.” http://vistacomputersolutions.blogspot.com/ ~~~~~ Funny Animal Photos ~~~~~ . . . . . . . . . . . . . . . . .

Mean Mob

"We'll raid the joint tonight." http://vistacomputersolutions.blogspot.com/ ~~~~~ Funny Animal Photos ~~~~~ . . . . . . . . . . . . . . . . .

Hide and Seek Cat

"I'm not here!" http://vistacomputersolutions.blogspot.com/ . . . . . . . . . . . . . . . . .