Wiki World

Hunting Animals Chose What They Eat

Hunting animals don't just eat what they "bump into". They select "who" they need to eat to maintain a healthy diet. This gives them a better chance of growing strong and big so they can reproduce and pass on their genes.

A team from the University of Sydney, Oxford University, Aarhus University (Denmark) and Exeter University researched the ground beetle (Anchomenus dorsalis). Beetles were divided into three groups: one had a selection of bugs offered to them; the second group had high-protein food; and the third had high-fat offerings. The latter two groups did not fair very well. Those in the first group did very well. They chose ants, slugs, moths, aphids and beetle larvae as they wanted and produced more eggs than the other two.

It was known that herbivore and omnivore insects ate varied diets. This study confirms the view that all animals select their food due to inner craving created by the body based on the body's immediate needs.

The problem is however - What happened to Man? Humans seem to have lost this attribute, consuming food that the body doesn't need: indeed, eating food that reduced longevity.

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Biology

Slum Cats

"They call us slum dogs you know."

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Funny Animal Photos

Vacuuming the House Is Dangerous for You

If you want to stay healthy don't vacuum your house. Have you ever done some hoovering and got a dry irritating cough? This could mean you need a new vacuum cleaner or should dump the existing one.

It is the way vacuum cleaners work that is the problem. They take in clumpy material which is caught in the filter bag. Very fine particles and bacteria get through and are pumped into surrounding air. If you are close-by, you breath in that foul air.

Top brands were tested including Hoover, Dyson, Electrolux, Sanyo and iRobot. When they were only six months old their HEPA filter systems failed. Allergens, bacteria and dust were pumped straight into the room.

Ideally we shouldn't have carpets in our homes at all. Having an industrial cleaner built into your home is the only answer. With these, dust is caught in a filtration unit outside of the house.

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Society

Ghetto Blaster Dog

"That's a ghetto blaster man."

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Funny Animal Photos

Darwin Police Station Evacuated Because of Fleas

Flee from the fleas! A police station has been evacuated in Darwin because a prisoner brought fleas into the jail house. The fleas spread all through the watch house and even to a police van.

Police had to wear gloves and tuck their pants into their socks to keep out the menace. They were also ordered to take a shower when they finished each shift.

But all this was in vain. After a week of scratching in agony they abandoned the station. The place has now been thoroughly fumigated.

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Society

Cat Climber

"That rock climbing course has really paid for itself."

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Funny Animal Photos

Tiny Phosphorus Wires Means Computers Can Be Smaller

Moore's Law can still be valid. Computer power can continue to double every two years. As the diameter of "wires" in semiconductors get smaller resistance to electrical flow increases. This was thought to be a real barrier to improving computer chips.

A team of researchers from the University of Melbourne, University of NSW and Purdue University in the US have made wires from phosphorus only four atoms in diameter. The tiny wires are encased in silicon and conductivity is retained.

When the diameter of conventional wires is reduced, resistivity rises exponentially. This means that as computer power has doubled so resistance has doubled. The conductivity in current computers is very poor. Silicon on the surface of the new phosphorus wire isolates it from the general environment, so the flow of electrons is unaffected and is not slowed down.

It will be some years before computer circuit boards can be made using the new technology. We are reaching the end-time for Moore's law, but the future holds the promise of smaller electronic devices.

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Computers

Cat Speaker

"Testing 123...."

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Funny Animal Photos

Strange Events Continue Around the World

Raising the ire of scientists, mysteries continue to happen. A year ago people in Arkansas experienced an omen for the new year. Thousands of redwing blackbirds fell from the sky, dead. Investigators came to the odd conclusion that fireworks scared them to death. Apparently they flew around blindly in the night, crashing into the walls of buildings.

In Altona, Germany, a large number of toads were found dead in a strange way. They had holes in their backs and their livers had been removed. It was concluded that crows had developed a way of getting at the nutritious livers without consuming poison from the toads. Taking the "myth" a little further "experts" said with livers removed the toads' lungs had inflated causing them to explode. Darn clever these scientists. They always have an answer.

They do seem to get some things right, however. In Alaska 55 musk oxen were frozen to death despite having two layers of fur. A tidal surge followed a storm at sea which cracked the frozen ice and the oxen fell into the freezing ocean. Surface sea water later refroze around the dead animals.

Odd events continue around the world with seabirds washing up dead on California beaches and swarms of ladybirds in Colorado.

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Science

Cat Punches Dog

"Take that Biffo"

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