The Secret World of Growing Puppies
Bringing a new puppy into a home is an exciting experience, but raising a healthy dog requires understanding how puppies grow and explore their surroundings. From the moment they are born, puppies undergo rapid physical and behavioral changes that prepare them for life as adult canines.
At birth, newborn puppies are remarkably helpless. They are born both blind and deaf, with their eyes and ears sealed tightly shut. During their first two weeks, often called the neonatal stage, puppies rely entirely on their mother's milk for nutrition and her body heat for warmth. Because they cannot regulate their own internal temperature, they sleep huddled closely in a pile with their littermates. Their only functioning senses at this stage are touch and smell, which guide them toward their mother.
Around two to three weeks of age, a major transformation begins. A puppy's eyes open, followed closely by the opening of its ear canals. At first, their vision is blurry and their movements are clumsy. As their leg muscles strengthen, they begin to wobble forward instead of crawling on their bellies. This period marks the start of the transitional stage, when puppies take their very first steps toward independence.
- neonatal:
- Having to do with newborn animals or babies during their first few weeks of life.
- littermates:
- Brothers and sisters born to the same animal mother at the same time.
- transitional:
- Passing from one stage, condition, or period of development to another.
- socialization:
- The process of learning how to get along with others and behave in a community or environment.
- bite inhibition:
- An animal's ability to control and limit the force of its biting.
- adaptable:
- Able to change easily to fit new situations or environments.
- reinforcement:
- Encouraging a behavior by offering a reward or praise when it happens.
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Preview questions from this passageShowHide
- 1What are two physical limitations newborn puppies have during the neonatal stage?
- 2Why do newborn puppies sleep huddled close to their littermates?
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About this informational passage for Upper Elementary
“The Secret World of Growing Puppies” is a informational reading passage about Puppy Development, written for Upper Elementary. It takes about 3 minutes to read (507 words) and comes with an interactive quiz and a printable worksheet with comprehension questions and an answer key.