“There was probably a mutation that arose in that gene that led to a really wrinkly puppy and a breeder said, ‘hey, that looks interesting, I’m going to try to selectively breed this trait and make more of these dogs’.”

Joshua Akey, of the University of Washington, Seattle, has been analysisng the genetic makeup of pedigree dogs (BBC).

“We’ve learned a lot more about urine than we ever needed or wanted to know – some of us anyway.”

David Korth, flight director of the International Space Station, says his team believe a problem with the station’s water recycling system is being caused by high concentrations of calcium in astronaut urine (Reuters).

“My job seems to have increasingly become giving people hope, so that instead of doing nothing and sinking into depression, they take action.”

The Guardian speaks to Jane Goodall.

“These same drugs that have been developed to treat cholesterol may have promise as treatments for Alzheimer’s disease.”

Richard Lipton, of Albert Einstein College of Medicine in New York, comments on his paper showing people with a gene variant linked to high levels of ‘good’ HDL cholesterol to lower risk of developing Alzheimer’s disease (Bloomberg).