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Danish research: Freeze DNA to save endangered species

Christian Wenande
April 4th, 2016


This article is more than 8 years old.

Cryobank could help preserve genetic material

“Black rhino in fridge number one. Siberian tiger in number two. Mountain gorilla in freezer three,” an itinerary might reveal in the not too distant future.

Ciro Pertoldi, a researcher at Aalborg University, wants to set up a cryobank to save the endangered species of the world.

In collaboration with Aalborg Zoo and Randers Regnskov, Pertoldi has applied to a number of funds for the 15 million kroner needed to establish the cryobank.

“It’s important to act now, because every species that disappears cannot be recreated,” Pertoldi told DR Nyheder.

“We want to create a genetic bank, which also serves as a fertility clinic, where sperm and eggs are stored so that we can recreate the same organisms one day.”

READ MORE: Denmark ‘ruins’ deal that protects endangered marine species

A frigid future
A cryobank could potentially store genetic material from endangered animals, such as leatherback turtles and orangutans, at minus 80 degrees.

According to Pertoldi, about one third of the world’s mammals are threatened with extinction.


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A survey carried out by Megafon for TV2 has found that 71 percent of parents have handed over children to daycare in spite of them being sick.

Moreover, 21 percent of those surveyed admitted to medicating their kids with paracetamol, such as Panodil, before sending them to school.

The FOLA parents’ organisation is shocked by the findings.

“I think it is absolutely crazy. It simply cannot be that a child goes to school sick and plays with lots of other children. Then we are faced with the fact that they will infect the whole institution,” said FOLA chair Signe Nielsen.

Pill pushers
At the Børnehuset daycare institution in Silkeborg a meeting was called where parents were implored not to bring their sick children to school.

At Børnehuset there are fears that parents prefer to pack their kids off with a pill without informing teachers.

“We occasionally have children who that they have had a pill for breakfast,” said headteacher Susanne Bødker. “You might think that it is a Panodil more than a vitamin pill, if it is a child who has just been sick, for example.”

Parents sick and tired
Parents, when confronted, often cite pressure at work as a reason for not being able to stay at home with their children.

Many declare that they simply cannot take another day off, as they are afraid of being fired.

Allan Randrup Thomsen, a professor of virology at KU, has heavily criticised the parents’ actions, describing the current situation as a “vicious circle”.

“It promotes the spread of viruses, and it adds momentum to a cycle where parents are pressured by high levels of sick-leave. If they then choose to send the children to daycare while they are still recovering, they keep the epidemic going in daycares, and this in turn puts a greater burden on the parents.”