Embryonic, Puppy and Dog Development

DOG DEVELOPMENT puppy stage All dogs pass through various stages as they grow and develop, physically, mentally, and psychologically. Psychologists use the term critical period to describe a specific time in a dog's life when certain experiences have a lasting effect upon their psychological development. Understanding these critical periods and a dog's stages of development will better help you understand your embryo stage R.I.P. dog's behavior and how to handle maturity stage rainbow bridge him during these special times. embryonic development 0-7 • Fertilization occurs and a two celled days embryo begins its life. 8-14 . Embryo will be 4 cell at the start of the days week and 64 cell by the end of the week; the Embryo enters the uterus. • The embryo is implanted in the 19 days uterus. Ca Zcm in length. The Structure of the basic eyeball is formed with the primitive cornea, lens and retina in place. Legs and Paws also begin to form. 20-33 days Embryo is now a fetus, about the size of a billiard ball. it also begins to show signs of panting. 40 days Fetuses moving so much they can be seen outside as a 'rippling' movement. They have a full coat of hair, along with • nails and paw pads. Milk teeth are submerged in the gums. 55 days puppy development 2. Born blind and deaf, a newborn puppy is entirely dependent on his mother. sexuality senses social temperature They cannot regulate their own body temperature and require stimulation to remove waste for their bodies. The suck reflex is present, as are the smell, touch and taste independent teeth senses. During week 2 the ear canals will open for the first time. Social interaction is already being learnt at this point. energy movement 0- 2 weeks His eyes will open when he's around two weeks old, although sexuality senses sight is limited and bright light should be avoided. social temperature Towards the end of this stage he'll be able to regulate his own body temperature, although quick changes can still be harmful. independent teeth The first teeth will start to appear and the instinct to pass waste away from the 'den' will kick in. energy movement Alertness increases and the puppy starts to learn to crawl, stand, and walk. 2-4 weeks Senses begin to mature and body temperature is regulated naturally at around 100 degrees Fahrenheit. The instinct to squat when passing waste kicks in and external stimulation for that to occur is no longer needed. sexuality senses social temperature Social interaction is very important with play, fighting, learning of boundaries, etc. independent teeth Fear response begins to emerge meaning that exposure to everyday items is very important at this stage. energy movement 4 - 12 weeks Social rankings are developed here as the puppy becomes more independent. sexuality senses social temperature Reinforcing good behaviour is key at this stage to prevent future problems. independent teeth Teething also starts during this stage, creating the urge for the puppy to chew. energy movement The start of sexual maturation also starts during this timeframe. 3-6 months sexuality senses Growth and Social learning continue. social temperature Energy levels are high at this point but it's important not to over exercise as this can lead to physical issues later on in life (hip dysplasia, etc). independent teeth By the end of this stage a dog will have reached sexual maturity. energy movement 6-18 months 3. dog maturity Depending on the breed, a dog will hit his senior years from 7 onwards. Becoming far more laid back, his mobility and also slowly decrease (although ensuring a dog stays active is extremely important to his well-being). rcise requirements will At what age do dogs become geriatric? Now as independent as hell ever be, a dog is fully developed. As he moves through his adult years his puppy exuberance will slowly disappear (although show through every now and again with 'mad half hours'). human Graph comparing dog and human years. years (defined as the relative yearly aging of each species) 130 120 Normal Adult Weight 110 100 • 0-20 lb • 21-50 lb 51-90 lb over 90 lb (0-9 kg) (10-23 kg) (24-40 kg) (40 kg) 90 80 70 60 50 30 20- 10 dog 123 45 67 89 10 11 12 13 14 15 16 17 18 19 20 vears rainbow bridge 4. Average life expectancy differs depending on the breed but, across all dogs, the mean age is II years and I month. Exercise and Diet play a crucial role in ensuring a dog has a long life, with healthy, natural food being particularly important. Wuefcome Your dog needs you to play a role in his development so you can help him become a loving, well-adjusted dog and companion. My heart beats fast when I can sniff The odors on the grass: So was it since the first prologue, So is it now 1 am a dog; So be it when I'm old and stiff, Or let me pass! The pup is parent of the dog: And I wish my days to run Bound each to each, pet365 Copyright 2011, Pet365.co.uk Sources: http://www.secondchancefund.org/ http://channel.nationalgeographic.com/series/in-the-womb/4046/Overview http://www.dogstardaily.com/training/puppy-personality-development domesticum. -William Wordsworth Ijews medium Fa