The result was a product with just the right elasticity and low enough acid and salt levels to favor the growth of the carbon-dioxide-burping microbe Propionibacterium freudenreichii, whose metabolic by-products give Swiss cheese both its nutty, sweet flavor and its holes.
Definition of ibex for English Language Learners. : a wild goat that lives chiefly in the mountains of Europe, Asia, and northeastern Africa.
The Pyrenean Ibex was a species of Ibex native to the Iberian Peninsula in Europe that went extinct in 2000. The species had been quite common in Southern Europe up until the 19th century. The causes of extinction are though to be over hunting and the loss of habitat to livestock.