[therodgers21]

therodgers21  asked the Naked Scientists:

Hi,

How can fish not freeze solid in Antarctic water? Can't we use it?

Love the podcasts & hope you had a great vacation.
 
From Silicon Valley ; where denial is sold by the share,
Bruce Rodgers

What do you think?

[blakestyger]

We do use it!

Antarctic and Arctic fish don't freeze at the very low water temperatures found there because their genomes posses a gene that is expressed as glycoprotein, an anti-freeze protein, in their blood plasma. This depresses the freezing point of their blood in the same way that ethylene glycol works in an engine block.

[Evie]

And also genetically engineered tomatoes that are frost-resistant!