Showing posts with label science. Show all posts
Showing posts with label science. Show all posts

Saturday, January 19, 2008

Some Notable Items and a Word on Cloned Animals

In the news:
The US government has given the green light to the production and marketing of foods derived from cloned animals.
Link

Then there's this:
US scientists say they have produced embryos that are clones of two men, in an attempt to produce patient-specific stem cells.
Link

Why is it that these two articles make me think long pig is not too far away? Will dietitians soon have to counsel their clients on its nutritional benefits and drawbacks?

To be serious though, the end of the FDA's six-year investigation into the possible effects of clone-derived food showed nothing harmful. Given FDA's history of leniency toward food producers and their close ties with the food industry, this isn't a shocking surprise.

For anyone who is unfamiliar with evolutionary biology, genetic diversity decreases the virulence of diseases through the development of more effective biological defenses. One of the ways to increase genetic diversity is DNA recombination via sexual reproduction. Without this diversity, we would see more animals getting sick (think bird flu) more frequently and faster than we can cope. There is also the problem of antibiotics in that food producers who use cloned animal stock will have to rely on more antibiotics to prevent disease outbreaks from happening. The US's epidemic and bioterrorism containment programs rarely work effectively in practice runs - what makes us think we can deal with animal epidemics any better?

Right now, the final decision on whether or not cloned animals products should be labeled as such is still pending.

I can't wait to hear how food companies are going to present and justify the use and sale of cloned animals in the coming months.

Thursday, December 13, 2007

"Extinction threat to wild salmon"

Here's an example of what is happening to wild salmon right now in support of Nestle's book:
Wild salmon on Canada's west coast are being driven to extinction by parasites from nearby fish farms, a study claims.

Wild pink salmon around the Broughton Archipelago are declining rapidly and will die out within 10 years if no action is taken, say researchers.

Link

Saturday, November 3, 2007

For a Friend

1.) The Great Pyramid of Giza - background for the following links
2.) Chris Dunn's website
3.) Margaret Morris's response to Dunn
4.) Another response to Dunn, this time from Alan Alford
and finally, pages 20-22 of Crecy

Aside from Crecy, I haven't read Dunn's book and these articles thoroughly, but it's a good idea to maintain a healthy skepticism about these topics. Then again, we may just be rediscovering lost knowledge again and again. Personally, I think the Crecy excerpt sums up my view of people and technology from previous eras.

Friday, November 2, 2007

"Be thin to cut cancer, study says"

Of course, that's not the only recommendation made in the report, which is linked to the article and quite hefty (400+ pages). It's a comprehensive review of the latest literature on cancer and lifestyle choices. There's supposed to be a follow-up report next year - something I look forward to reading.