Dogs and cats have become an integral part of our lives, offering companionship, affection, and joy.But what are the origins of these two species, and how have their eating habits evolved over the centuries? Even if these differences are often downplayed, these are actually animals with specific nutritional needs, stemming from distinct adaptations during their evolution. Let’s look at them together…
THE DOG WAS A WOLF
The dog, who is considered “man’s best friend,” has a history of living alongside humans dating back thousands of years. Originally descendants of wild wolves, dogs were domesticated to perform tasks useful to humans, such as hunting, guarding, and herding. Domestication led to a close bond between the two species, and the dog became a loyal companion. Not only that: through the selection of different breeds, distinct character and behavioral traits developed that often mirror the morphological differences between them. So, that reducing it to a simple “wolf descendant” is at the very least reductive, at least for many of the breeds we know today. A French Bulldog and a German Shepherd are both dogs, certainly, but with specific needs and distinct traits well-defined and shaped by corresponding evolutionary factors.
THE CAT IS A HUNTER… OF MICE
Cats, on the other hand, with a more independent demeanor, have a history of being adopted by humans dating back around 9,000 years ago. Initially drawn to food stores, cats became valuable to human society because they helped keep rodent populations under control. Their ability to hunt mice and rats made them popular in agriculture and over time, they integrated into human homes, becoming beloved pets while still staying true to their territorial and behavioral “independence.” They are still serial predators today, when they are allowed to express these feeding behaviors; therefore, it’s important to remember this when discussing their nutritional needs as obligate carnivores.
SO, ARE DOGS AND CATS CARNIVORES, THEN?
The evolution of the dog as a hunter and working animal has influenced its eating habits. Originally carnivores, dogs became more adaptable thanks to their relationship with humans. Today, many dog breeds are fed a balanced diet consisting of meat or fish, grains, and vegetables. The pet food industry offers a variety of options, including dry food, wet food, and specialized dietary options tailored to individual dogs’ needs.
Unlike dogs, cats are indeed considered obligate carnivores, which means they primarily need meat to stay healthy. This reflects their hunting nature, requiring animal proteins and fats to maintain their health: these nutrients are indeed the core essential needs of this species, and cat food is formulated with this in mind, providing balanced blends of animal-based protein sources (meat or fish), essential vitamins, and minerals.
Dr. Alessandra Calini
Veterinary Nutritionist