DOGS Species and ancestry: Dogs are scientifically classified as Canis lupus familiaris and are descendants of wolves, with domestication occurring over 15,000 years ago. Lifespan: On average, dogs live between 10 and 15 years, though size and breed can affect living, with smaller breeds often living longer than larger breeds. Senses: Dogs have an extraordinary sense of smell, estimated to be 10,000 to 100,000 times more sensitive than humans, which allows them to detect scents and track objects very effectively. They also have good hearing and can detect frequencies higher than humans can. Variety: There are hundreds of recognized dog breeds, ranging from tiny Chihuahuas to giant breeds like the Great Dane, each with unique physical traits and temperaments. CATS Whisker Sensitivity: Cats have highly sensitive whiskers that help them navigate tight spaces and detect changes in air currents, giving them a kind of "sixth sense." Purring Mystery: While cats commonly purr when content, research suggests they may also purr to self-soothe, heal bones, and reduce pain. Flexible Spine: Cats have an extremely flexible spine and loose shoulder blades, which contribute to their ability to twist mid-air and land on their feet this is...
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