It won't be a surprise if you believe that most surgeons promote surgery - for you. For themselves, they're a little more cautious. It's no different than a real estate person who tells you to list your house at a lower cost than they would list it for themselves - their commission is 2-5% on your sale so moving a house faster is more important to them than if it was their own home, where they'd get up to 100% of the additional revenue and wait a little longer to get the higher price.

Semen stored in a laboratory in Sydney has been defrosted and successfully used to impregnate 34 Merino ewes, with the resulting live birth rate as high sperm frozen for just 12 months.

The authors believe the sperm used is the oldest viable stored semen of any species in the world and definitely the oldest sperm used to produce offspring.  The original semen samples were donated from sires owned by the Walker family. Those samples, frozen in 1968 by Dr Steven Salamon, came from four rams, including 'Sir Freddie' born in 1963, owned by the Walkers on their then property at Ledgworth. The Walkers now run 8000 sheep at 'Woolaroo', at Yass Plains, and maintain a close and proud relationship with the animal breeding program at the University of Sydney. 

With a strange verdict by a jury in San Francisco, it became open season on glyphosate, a common weedkiller in use for generations. One new claim is that it leads to higher phosphorous levels.

Yet glyphosate only contains trace nutrients, nothing like what fertilizer has. Overuse of phosphorus-based fertilizer in some areas have led to a saturation of the soil’s capacity to hold the nutrient, which increases the likelihood that any additional phosphorus applied to the land will run off into waterways and cause of harmful algal blooms and deoxygenation leading to fish death.

The U.S. college admissions scandal, where wealthy elites paid to circumvent an arbitrary entrance scoring system at some privileged schools by gaming it, has already led to lawsuits because the value of a degree from USC, Stanford, Yale and others involved has been devalued, students and their lawyers claim.

Though the common refrain is that old growth rainforests are the only way to stave off global warming and must be preserved at all costs, a new analysis makes the case for logging and takes some hot air out of the environmental balloon. 

It found that the world’s largest carbon sinks are located in young, regrowing forests.

A new paper says that how much you look racially stereotypical, like other members of your racial group, influences how likely you are to get a degree in science, technology, engineering or math (STEM) fields.