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Author Topic: Darwin  (Read 13610 times)

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Re: Darwin
« Reply #90 on: March 11, 2015, 10:26:24 pm »
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.

Comparison Chart

Category                         Dog                    Grey 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                         The  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                         The depends on age and breed.                     They have lots of energy.
Walks                         The  Dogs need exercise; a daily walk.                     They walk all day, every day
precaudal gland                         non-functional                     Wolves have this caudal mark/scent gland (a dark spot positioned approx. 3-4 inches down from the base of the tail,) it can tend to have a bluish tinge to it with a few longer stiffer hairs that poke out of it.

http://www.wolfhowl.org/anatomy.php Wolf Howl is particularly interesting.     

Light is sown for the righteous, and gladness for the upright in heart. Ps. 97:11


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