Crack Babies – The Epidemic That Didn’t Happen

The Epidemic That Didn’t Happen 

 Baby addicted to cocaine

One sister is 14; the other is 9. They are a vibrant pair: the older girl is high-spirited but responsible, a solid student and a devoted helper at home; her sister loves to read and watch cooking shows, and she recently scored well above average on citywide standardized tests.

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Pedigree Dogs Are Becoming Stupid

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I just yelled “BANG”and look what happened!

Pedigree dogs have become increasingly stupid as they are now bred for their looks, not their brains, according to new research.

Their mental and physical agility of many breeds is being eroded as owners now look for docile, pretty pets to live in their homes.

In the 19th century dogs were more likely to be selected for their strength and skills, so they were able to earn their keep guarding homes and livestock and fetching the quarry on a hunting trip.

But a significant change in breeding trends has meant the ancestors of these proud working dogs are now less responsive to commands and not as alert or attentive.

Scientists in Sweden have found strong evidence that breeding for appearance has led to a decline in intelligence.

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Tiny Insect Develops Long-term Memory

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If a specific butterfly anti-sex scent is coupled with a pleasant experience, then parasitic wasps are able to develop long-term memory and respond to this scent that they do not instinctively recognize. After successfully ‘hitch-hiking’ with a mated female cabbage white butterfly and parasitizing her eggs, the parasitic wasps are able to remember the route and navigate it again. Researchers from Wageningen University, Netherlands, reported this finding in the Proceedings of the National Academy of Sciences.

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Transplanted Stem Cells Undo Birth Defects

Transplanted Stem Cells Undo Birth Defects 

 Neural stem cells, tagged green with a fluorescent dye, have been transplanted among the brain cells (red) of a mouse born with brain damage after its mother was given heroin during pregnancy.

By injecting stem cells directly into the brain, scientists have successfully reversed neural birth defects in mice whose mothers were given heroin during pregnancy. Even though most of the transplanted cells did not survive, they induced the brain’s own cells to carry out extensive repairs.

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