Showing posts with label breeds. Show all posts
Showing posts with label breeds. Show all posts

Monday, August 08, 2011

The role of dogs in Human evolution


This week-end following the conversations we were having about Charles Darwin and the Origin of Species, Me and my son went to visit the Natural History Museum, Science Museum and Botanical Garden of Lisbon.

Lisbon Natural History Museum

On this visit we reflect on various aspects of the creation of the solar system, the emergence of life on Earth, evolution to dinosaurs (a subject that always fascinates children)

dinosaurs on Lisbon Natural History Museum

mass extinction of dinosaurs, evolution of mammals, and of course human evolution and the role of man's best friend, the dog in our evolution.

In our days it is believed that wasn't man who approached the wolf, but the wolves that followed the human groups to take advantage of the debris produced and often not consumed.


wolf

As the proximity of the two species were kept, the more likely situation is that the wolves became more docile and trusting, thus ignoring, the basic instincts. Animals that remained with the human groups, had more success in finding food, and therefore to reproduce and keep their young.

From the step to approach human beings and the first adoption that challenged the laws of the natural world, where humans and wolves competed as predators, we can only guess what happened.

wolf in a human group

With the domestication and adoption of wolves within the human group it is believed to have formed a symbiotic relationship where the Wolf received food, shelter and care from humans, and humans received protection and companionship, which evolves into a mutual aid in the hunt and later in other activities such as herding.

The man really helped in domestication by selecting the most pleasing docile animals and eliminating those with wild characteristics.
The Wolf, is thought to have contributed to man evolution by eliminating the man's need to develop physical senses, like smell to hunt. Also the use of Wolf, or probably at this point we can designate as dog , as a guard and herder, have actually contributed to the domestication of livestock, that in addition to sedentary agriculture, eliminate our physical characteristics required for hunting and fighting.

cave painting of a man with a dog

Archaeology has placed the earliest known domestication at potentially 30,000 BC in Belgium, and with certainty at 7,000 BC.
But it seems that Wolf domestication is older than the archaeological record so far found.

As the human migrated around the world, their dogs migrated with them. Changes to agricultural and urban areas have led to new selections and specializations, such as search and delivery of items, saving people, police dogs, etc. With the new selection was a new specialization of different types of dogs that best suited human needs.

immigrants with their dogs

Kennel clubs appeared in the middle of the 19th century as a way to regulate the various breeds, that already existed and were used in competitions.

one of the first dog show

Today these Kennel Clubs defines the dog breeds standard, which everyone recognizes.

Wolves, ancestors of our dogs have been since the Middle Ages, targeted has demons and systematically exterminated, witch almost led to the disappearance of these magnificent animals.

Let us pray that the future has room for a new harmony between man and wolf.

comparison of a wolf and dog paw

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Wednesday, September 06, 2006





Golden Retriever puppy
Choosing a puppy

Before choosing to have a puppy, a few considerations must be done:

1. Home

The home were the dog will leave is fundamental in choosing a dog. This doesn't mean to consider only the size or type of home (apartment, farm, …), but also if it is accessible or not to the dog.
For instance, the owner may have a big house, but if the dog only can access the yard, then it's home is the yard.
If the owner have a small apartment, but the dog only be there small periods of time, and in the remaining time is with the owner outside, as a companion in work and pleasure, them will be a dog that lives inside a house.

2. Availability

Dogs are essentially social animals that like to live in a group.
There are some races that tolerates better outside alone live, and other that needs company of people or other animal.
The owner availability time, has a big weight, since if he is absence a long period of time, will have to choose races that better adapts to this absence or to choose to have several dogs (sometimes cats and dogs also form family groups).

To live on a farm or yard doesn't mean that the owner doesn't spend time with the dog, since it is important the time spent for him to feel connected to the owner and part of a family.

3. Job

Dogs through time form partnerships with people, and were bread and trained to this jobs.
So we have breeds for pasturing, guard, hunt, company, ...
So some breeds don't leave well confined and without a job. For instance a Perdigueiro Português wouldn't be happy confined in a apartment.
This doesn't mean that isn't possible to have a kind of a breed, but means that training or some exercise, like agility, must considered.
The study and analysis of a bread must be done before buying that breed.

4. Maintenance

The maintenance of a healthy dog has some expensives that must be considered.

a) Feeding

Dogs should be fed with their on food and people left overs are not suitable for dogs.
The breeder or veterinarian are the best people to inform the owner about the food that should be given during the dog life.

b) Veterinarian

Every dog should be vaccine and desparitize annually.
Sickness and health problems, like in people, can also appear in a dog and some times this can be quite expensive.

c) Hygiene

Apartment dogs have more expenses, since is necessary to buy proper bags to collect droppings in the street or to traine the dog to use a place, like a sand box.
But farm or yard dogs also need cleaning of the dropping site, witch implies trash bags and cleaning with detergents.

Australian Shepherd puppy
5. Training

Some breeds imply more work and dedication by the owner for their training and socialization with people and other animals.
All dogs should have basic training, that can be or not administrated by the owner.

6. Breeding

To breed a dog is not something light, since implies expensive health tests (like genetic diseases, dysphasia, eyes,… ); expensive with correct feeding of the mother and regular visits to the veterinarian to watch the pregnancy mother and after birth health; feeding and vaccination of the puppies; and the possibility of not having a proper owner or devolution of the puppy.
After all considerations, the choice of mother and father must be made with careful and analyses, in order to keep the race standards and have healthy puppies with good personalities.

Golden Retriever puppy





















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