The dog and the wolf are actually the same species. Their physical appearance is similar but their instincts, disposition and temperament vary widely.

The gray wolf, or simply the wolf is the largest wild member of the Canidae family. The dog is the domesticated form of the gray wolf. Genetic drift studies and DNA sequencing confirm that domestic dog shares a common ancestry with the gray wolf. Eurasia and North America used to hold most of the world’s wolf population but the numbers have begun to dwindle due to human encroachment. Dogs are commonly seen in any place that is inhabited by people.

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Dog

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Dog

Wolf

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Wolf
Kingdom Animalia Animalia
Phylum Chordata Chordata
Family Canidae (Canis lupus familiaris) Canidae (Canis lupus)
Class Mammalia Mammalia
Order Carnivora Carnivora
Genus Canis Canis
Species Canis lupus familiaris Canis lupus
Hunting ability Due to their domestication, dogs have a weaker instinct to hunt. most breeds of dog's teeth are too small to rip open a deer's throat, indicating an adaptation to a different diet. Wolves hunt in packs, allowing them to cooperate and take down much larger prey.
Life Expectancy 7-20 years Average 7 years in the wild, 15 years in captivity.
Grooming Less frequent if short-haired, very frequent if longer-haired to avoid matting none
Loneliness Can be left alone during the day if necessary, but usually require attention throughout the day. Varies widely between breeds. They can live alone, as lone wolves, but even lone wolves usually find a mate and make a pack of their own. Wolves need other wolves.
Space Depends on breed They need tons of space for territories, but the space they need depends on the pack's size.
Physical Characteristics Dogs have "cuter" traits and a wider range of traits, due to the domestication. But in general, dogs have shorter snouts, a wide range of coat colors, thinner legs, and thinner coat. Wolves have longer muzzles and legs, larger feet and a broader skull. Wolves have physically larger brains.
Affection Affectionate if taken care of These are wild animals and people should not bother them for affection.
Domestication The dog can be domesticated, are great companions and are suitable as pets at home. A wolf is a wild animal and not are suitable as pets. They are trainable only to a minimal extent, and that training is not passed on to their offspring.
Sound A dog barks but can howl when necessary. Sometimes growl at slight disturbances. Dogs also bark for joy. A wolf usually howls to bond with their pack, barking softly to another wolf occasionally if another comes on its territory.
Protection Some are protective of their owner. They are very protective of their pack mates.
Social existence Dogs "in the streets" usually roam in packs. Dogs always live near humans, even if they are ownerless. They scavenge human waste. 3 week old puppies already approach humans Wolves have stronger instincts and love to live in packs away from civilization.
Good with children If socialized. Some small dogs are OK with children but are fragile if handled roughly. Wait until children are 8 years old before getting a dog. Ironically, some small breeds are the most agressive. As with any wild animals, you should be careful and never bother them or let your children do.
Energy depends on age and breed They have lots of energy.
Walks Dogs need exercise; a daily walk. They walk all day, every day

edit Physical characteristics

Dogs have relatively smaller skulls with varying muzzles, physically smaller brains, smaller teeth and varying leg lengths as compared to wolves. Smaller brains require less calories for dogs to survive. The paw of a dog is half the size of that of a wolf, and some dog's tails curl upwards, unlike that of a wolf. Dog teeth have less complicated cusp patterns and a much smaller tympanic bulla as compared to wolves.

Wolves have larger, broader skulls with a longer muzzle, physically larger brains, larger teeth and legs. They have a narrow chest with forelegs pressed into it. Elbows point inwards and feet point outwards. Also, wolves have a pre-caudal gland at the base of their tail used to release a pheromone onto another wolf, marking that wolf as a member of a particular pack. This gland is vestigial in dogs and functions only minimally in dogs.

edit Domestication

Dogs have been domesticated for a very long time now, and understandably more responsive to domesticating techniques than wolves. Dogs respond to the voice; wolves to hand signals. The dog has lost its hunting ability because of domestication.

The wolf is a natural hunter. Wolf teeth are designed for hunting. Wolves have stronger molars than dogs, enabling them to crush large bones. Wolves could prey on little children. Dogs, on the other hand, are very friendly and playful towards children. Feral dogs have been known to kill small children and attack adults.

edit Training Dogs

According to National Geographic's award-winning show, Dog Whisperer with Cesar Millan, humans need to dominate their pet dogs to get them to behave. The logic was that dogs are descended from wolves, and wolves live in hierarchical packs in which the aggressive alpha male rules over everyone else. However, many experts say Millan's philosophy is based on now-debunked animal studies and that some of his techniques - most famously the alpha roll, in which he pins a dog on its back and holds it by the throat - are downright cruel.

Experts also suggest that wolves live in nuclear families where the male wolf is like the father and other wolves following the leader of the pack are like children following the lead of their parents.

edit Reproduction

Most domestic dogs are sexually mature by the age of 6 to 12 months (some large breeds take slightly longer). Wolves reach sexual maturity after two or three years; that's when they leave their pack in search of a mate. Female wolves come into season or heat only once in a year, while domesticated female dogs heat two times a year. Only the alpha female wolf is allowed to breed. There is no such hierarchy or difference amongst dogs.

edit Behavioral traits

Wolves are social and live in packs. They need fenced yards and constant monitoring. Dogs generally live by themselves, and most need no containment. Wolves are generally more intelligent and more aware of their environment as compared to dogs. But when it comes to sociability, dogs are generally more sociable with animals and sometimes with other pets as well. It is almost impossible to house train a wolf. Dogs, because they're domesticated, can be trained with relative ease to follow commands and perform various tricks.

edit Diet

Although dogs fall under the category of carnivore, they are largely omnivores and can digest a wide variety of foods like vegetables, grains, fruits, plants and meat. Wolves primarily feed off meat and even fish, and attack medium to large sized ungulates with their hunting prowess.


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