Goat Security

So get this: the British military will no longer use goats in lethal experiments to guage the risks of rapidly evacuating submarines:

"Animal rights groups complained about the tests for years. Six goats died during the experiments between 2000 and November 2006 while 122 more were slaughtered as a result."

So much for my friend Cleitus' brilliant idea of using armies of pigs as a cheaper safer (if not entirely aesthetic) way to clear landmines in post-conflict zones.

The most interesting line in this article is where we are told why goats, in particular, were used for these experiments:

"British military scientists subjected the goats, chosen because they have physiological similarities to human beings, to similar variations in an effort to gauge how sailors might be affected."

Physiological similarities to which human beings, I'm asking myself? Please, someone help me out here.