13 Facts About Dogs

Dogs classified the domestic dog as Canis familiaris and, on the next page, classified the grey wolf as Canis lupus.

Dogs are the most variable mammal on earth with around 450 globally recognized dog breeds.

Dogs are susceptible to parasites such as fleas, ticks, mites, hookworms, tapeworms, roundworms, and heartworms, which is a roundworm species that lives in the hearts of dogs.

Dogs are vulnerable to some of the same health conditions as humans, including diabetes, dental and heart disease, epilepsy, cancer, hypothyroidism, and arthritis.

Dogs bear their litters roughly 58 to 68 days after fertilization, with an average of 63 days, although the length of gestation can vary.

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Dogs generally show reduced fear and aggression compared with wolves.

Dogs inferred the names of novel things by exclusion learning and correctly retrieved those new items immediately and four weeks after the initial exposure.

Dogs had learned the names and could associate by verbal command over 1,000 words.

Dogs can read and react appropriately to human body language such as gesturing and pointing and human voice commands.

Dogs were introduced to Antarctica as sled dogs, but were later outlawed by international agreement due to the possible risk of spreading infections.

Dogs perform many roles for people, such as hunting, herding, pulling loads, protection, assisting police and the military, companionship and aiding disabled individuals.

Dogs suffer from the same common disorders as humans; these include cancer, diabetes, heart disease and neurologic disorders.

Dogs were depicted to symbolize guidance, protection, loyalty, fidelity, faithfulness, alertness, and love.