Extraordinary Proteins. Extreme lifestyles sometimes require http://www.ks.uiuc.edu/Research/cryptochrome/

Elephants can hold their breath for 2 minutes, but whales can hold their breath for 90 minutes - and they do, migrating underwater around the world. To find out how, a group of researchers contacted museums and zoos around the world^[1].

Molecular Tour:

showing magnetic core in context of protein

no context and now the core is in cpk.