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human children
Dogs have some social skills that parallel what?
scents, pheromones and taste
What is gustatory communication include in dogs?
hand signals
People communicate with dogs by voice commands, body language or posture and what else?
Dog communication
Eye gaze, vocalization and body posture are examples of what?
hand signals
In addition to vocalization and body posture, how do people communicate with dogs?
dogs.
Which typically has thicker skin, dogs or wolves?
atrophy of the jaw muscles.
Dogs having ears that are not erect may be due to what?
diagnostic features
What kind of features differentiate gray wolves from dogs?
once a year.
How often do female wolves enter estrus?
behaviors.
Instead of genetic traits for production, dogs are bred for what?
11
How many "fixed" genes demonstrate the differences between the wolf and dog?
morphology and behavior
The gene differences indicate what two things done by selection in dogs during breeding for domestication?
tameness
What is the common trait selected for dogs in overall breeding?
fear and aggression
What do most dogs show less of than wolves?
production-related traits
Most domestic animals were selected for what traits?
for their behaviors.
Why were dogs initially selected?
11
For wolves and dogs, how many fixed genes show a variation?
aggression
Dogs show less fear and what as opposed to wolves?
525 million
What is the larger count for numbers of dogs considered to populate the planet?
525 million
How many dogs are estimated to be in the world?
human population densities
What are dog population estimates based on other than land uses?
apex
Like wolves, big domesticated dogs are considered what type of predator?
fearless
Wolves may act in what behavioral manner when attacking dogs?
dogs
What animal is reported to be killed more often than sheep by wolves in Croatia?
apex
Like wolves, what kind of predators are large dogs?
sheep
Dogs die as a result of Croatian wolf encounters more than what kind of animal?
Wolves
What limits the feral dog population in Russia?
leopards.
What large cat has a particular taste for dogs no matter how big the dog is?
Striped hyenas
What is a typical predator of dogs in places such as Turkmenistan?
alligators and pythons
What two reptiles kill dogs and consume them?
Leopards
What big cat has a tendency to attack dogs?
Tigers
What big cats in Indonesia also attack dogs?
alligators and pythons
What type of reptiles eat dogs?
Striped hyenas
What is a known predator of village dogs in India?
omnivores
Dogs exhibit carnivore as well as what other type of dietary behavior?
vegetables and grains
Dogs can digest meat as well as what else?
obligate
Cats are known as what type of carnivore?
carnivores or omnivores
Because of what they eat, dogs are classified as what?
protein
Dogs do not require a very high level of what when eating?
starch
Dogs have genes that allow them to thrive on what when compared to wolves, who cannot?
a few hundred years
The majority of dog breeds have only been around for how long?
particular morphologies and behaviors
People selected dogs they wanted based on what two things?
selective breeding
Hundreds of different dog breeds exist because of what?
Irish Wolfhound
Height measurements in dogs go from six inches for Chihuahuas to 30 inches in what breed?
a few hundred years old
How old are most dog breeds?
hundreds
How many different breeds are there?
blue
Gray color is often called what when referring to dogs?
selective breeding
Natural selection and what makes certain dogs behave certain ways?
breed
What distinguishes different types of dogs from one another?
modern kennel clubs.
Who keeps classifications of different dog breeds?
natural selection and selective breeding
What is responsible for different dog types and breeds today?
breeds
Animals that share characteristics that are different than what other animals in that species have is known as what?
non-scientific
Modern dog breeds are what type of classification which is maintained by modern kennel clubs?
unsystematic.
The methods kennel clubs used to classify dogs is what?
four
A scientific study of dog genetics has shown only how many types of dogs being determinably distinct?
Malamute and Shar Pei
What, according to the text, are two examples of "old world" dogs?
herding
the Border collie is an example of what type of dog?
four
How many main types of dogs are there?
old world dogs
What type of dogs are Shar Peis?
all others
What are the other modern and hunting types of dogs called?
bite inhibition
What is one of the complex behaviors pet dogs have gotten from wolves?
sophisticated forms of social cognition and communication
What may make dogs have the ability to be trained by, play with and fit in with people?
one of the most successful species on the planet today.
Higher social attributes and human relationships may have caused dogs to reach what as a species?
bite inhibition
What is a complex behavior that dogs inherited from wolves?
hunter-gatherers
Dogs had a worth to what type of early humans?
aiding handicapped individuals.
Dogs have hunted with and done other things for people for a long time, but what is a more recent help to people they provide?
man's best friend
Because of a dog's resourcefulness to people, they have been given what nickname?
a source of meat
Some cultures treat dogs as what rather than companions?
food scraps.
What did dogs clean up to help with keeping habitations of people clean?
three dog night
What do Australian aborigines call a frigid night?
early warning.
What did a dog's good hearing help humans with?
cleaning up food scraps
How could dogs have helped with sanitation issues in camps?
three dog night
What is the Australian Aboriginal expression that indicates a very cold night?
cooperative hunting
What type of hunting is it called when humans and dogs hunt together?
2004
What year was research completed to demonstrate humans benefited by having dogs hunt with them?
sense of smell
What would have been the top benefit for dogs in camps?
the domestication of the wolf
The successful mixing of dogs with hunting is often given as a primary reason for what?
sled dogs
What type of working dog may have been the reason so many humans were able to get into North America 12,000 tears ago?
Bering land bridge
What did ancient people walk across from Siberia into North America?
9,400 years
How old are the oldest findings of dogs in North America?
12,000 years ago
Evidence places dogs in North America when?
Athabascan
Dogs were the only domesticated animals for what North American population?
Apache and Navajo tribes
Dogs contributed to what migration 1400 years ago?
horse
People still used dogs as pack animals even after what other animal began being used for this purpose?
puppy
A grave from 12,000 BC was found to contain an older person and what else?
humans and dogs
What two species have the most widespread bonding?
after World War II
When did more people begin to keep dogs as pets?
1980s
What decade showed a change in the way people kept dogs as pets?
outside
In the 1950s and 1960s most dogs where kept where?
elites
Historically, who in particular had dogs as companions?
outside
Dogs were kept where in the 1950s and 1960s as compared to today?
1980s
When did the role of dogs change to be more than guardians or walking companions?
commodification
Shaping dogs to what people want is called what?
dogs.
The idea of what constitutes a family, from the human perspective, has enlarged to include what?
two
How many big trends are involved in how much the position of dogs has changed in human civilization?
commodification
When a person shapes a dog to conform to his expectations of behavior, it is called what?
everyday routines
A second major trend has been increasing the idea of family and home to include dogs in what?
commodity forms
It is easy to turn a canine into the perfect companion because so much of what is available?
18th
Dog training can be researched back to what century?
urine marking
How do dogs establish their territory as far as scent is concerned?