From The University of Guelph:

The Enviropig™ is a genetically enhanced line of Yorkshire pigs with the capability of digesting plant phosphorus more efficiently than conventional Yorkshire pigs. These pigs produce the enzyme phytase in the salivary glands that is secreted in the saliva. When cereal grains are consumed, the phytase mixes with the feed as the pig chews. Once the food is swallowed, the phytase enzyme is active in the acidic environment of the stomach, degrading indigestible phytate in the feed that accounts for 50 to 75% of the grain phosphorus.

Wow.  I wonder if the foodie spies are in on this too?

(More transgenic animals reported on here, so you too can blow your mind about the genetically modified food you may or may not be consuming)