09/29/2026
How cool is that!
A cow can spend all day eating grass, but there’s a problem: it cannot digest the cellulose in grass on its own. Yet somehow that grass becomes energy, muscle, and milk.
How?
A cow has one stomach with four specialized compartments. The largest, the rumen, acts like a living fermentation chamber filled with microorganisms that produce enzymes capable of breaking down cellulose. They ferment the plant material and produce compounds the cow can absorb and use for energy.
But the process doesn’t stop there. A cow regurgitates partially digested food as cud and chews it again, breaking tough plant material into smaller pieces. Its saliva helps maintain conditions inside the rumen that allow fermentation to continue. The food then passes through specialized compartments where water and nutrients are absorbed before reaching the abomasum, where acid and enzymes continue digestion.
Even the microorganisms become part of the process. The cow provides them with food and an environment in which they can thrive. In return, they unlock nutrients the cow could not otherwise obtain from grass, and many of the microbes themselves are eventually digested as an additional source of nutrition.
The cow feeds the microbes, and the microbes help feed the cow. It is a remarkably coordinated relationship. So where did a system like this come from?
Evolutionary explanations can propose how digestive systems that already exist changed over generations. But that pushes the deeper question backward. Where did the functioning digestive machinery come from in the first place? Where did the biological information necessary to build, regulate, and reproduce it originate?
And the cow adds another layer to that problem. Its specialized stomach compartments must work with muscular contractions, carefully maintained chemistry, cud-chewing behavior, and an enormous microbial community. Explaining how an existing digestive system might change is not the same thing as explaining the ultimate origin of the machinery and information that make digestion possible.
Genesis starts somewhere entirely different. On Day Six of Creation Week, God created the land animals according to their kinds. Cattle did not have to wait millions of years for an unguided process to eventually equip them to process their food. The Creator who made cattle also knew exactly what they would need and designed them accordingly.
The more closely we examine something as ordinary as a cow eating grass, the more extraordinary the engineering becomes.
“And God made the beast of the earth after his kind, and cattle after their kind…”
Genesis 1:25