An appendage growing from the stem of a plant. Leaves are extremely variable in form and function according to species. For example, the needles of pine trees, the spines of cacti, and the bright red parts of the poinsettia plant are all leaves modified for different purposes.
Take her temperature daily as her expected delivery date approaches. Normally a dog's temperature is between 101 and 102 degrees. When your pregnant dog's temperature drops below 100 degrees, that's an indication she'll have her puppies within 24 hours. Once labor begins, it can last up to 12 hours. If your dog's temperature drops significantly, she's ready to give birth soon.
By paying attention to your dog's behavior during the last two weeks or so of her pregnancy, you can determine when labor is about to begin, and when it finally does. Signs of Labor. Within 24 hours of the impending birth, your dog's body temperature will drop from above 100 degrees Fahrenheit to below.