1. Straw Suits Some Cows!
      In a study designed to investigate ways to reduce winter feeding costs, researchers fed cattle ammoniated straw. During the 3-year trial, 32 cows - 5 to 8 years of age - were fed straw from December to May. Some cows performed poorly, while others maintained themselves on the diet. Why did some cows perform so poorly?

A. They are genetically less efficient than the cows who performed well on straw.

B. The straw didn't taste good to them.

C. The cows who performed well had previous experience with ammoniated straw.

2. Moose Migrate Uphill!
      Contrary to the general pattern of migration, a population of moose in central Norway migrate from low-lying summer areas to high-elevation winter areas. Archeological evidence shows they have done this for thousands of years even though they are heading to poor quality winter range. Why do these moose migrate up hill?

A. All the people live in the lowlands so there's nothing for them to eat down there.

B. Because they learned it from their Moms.

C. Their front legs are shorter than their back legs so it's easier for them to walk uphill than downhill.

More Digestion!