In one sentence, describe what the following article is about: A male dog that is too young will not be able to reproduce. A male dog usually reaches sexual maturity when they are over a year old, however they usually begin puberty when they are six months to eight months old. They can impregnate a female dog from the point of puberty on. If you want to use your dog for breeding when it is at its maximum fertility, wait until it is at least a year and a half old. The first step in assuring that your male dog is fertile is to make sure that he is generally healthy. If he has any severe health problems, these could interfere with his fertility. Make sure that your dog gets regular annual exams and that you treat any problems that are found effectively. Some general health problems that could interfere with reproduction include mobility issues that could inhibit the ability to complete sexual intercourse or injuries to the reproductive organs of the dog. There are some diseases and genetic abnormalities that can make a dog infertile. If you are serious about wanting to use your male dog to breed, then you should have it tested for a diseases that could cause infertility and genetic problems that could cause infertility or genetic problems for offspring. For example, genetic problems could include chromosomal anomalies in the dog or the potential for polygenic disorders if mated.
Summary: Make sure that your dog is old enough to breed. Make sure your dog is generally healthy. Have the dog tested for infectious diseases and genetic issues.

In one sentence, describe what the following article is about: Broil (top grill) them in the oven at the top rack to blacken the skin. Remove the skin (optional). Sweat the onions on medium heat for about 20 minutes (until translucent) in olive oil, stirring occasionally. Blend until all ingredients are pureed.
Summary: Stem, remove the seeds, and finely chop the serrano peppers. Remove the leafs and stem and halve the tomatillos. Finely chop the sweet onion. Add tomatillos, onion, serrano peppers, chopped cilantro, sugar, and lime (without skin) to the blender. Add salt to taste, chill in the refrigerator.

In one sentence, describe what the following article is about: Just be careful not to hurt anyone's feelings or make someone sound bad. For instance, talk about the people you have a crush on, the people your friends have a crush on, the school gossip, or the TV shows or movies you like at the moment. Conversation stimulates the mind, and a stimulated mind is an alert mind. Scare yourself silly. Tell lots of super scary stories that will scare each other into staying awake. Try playing a truth or dare game in the dark outside, so you will be too scared to sleep. The thrill of hiding from whoever is "it" will keep you up! It is also a fun game to play when you have nothing to do. Do not hide lying down, or else you could fall asleep. Get outside into the fresh night air (if your parents approve of it). Jump on the trampoline, play flashlight tag, run in circles, have races, or go swimming in the backyard pool at night (with permission from the parents). The cold air will help keep you awake. It doesn't matter if you are a good or bad singer, singing is a great way to pass the time while keeping your mind active. You could play a game like American Idol or The X Factor in your living room or bedroom, even outside. Just be sure not to wake those in the house trying to sleep.
Summary:
Try talking all night about exciting things. Play hide-and-seek in the dark. Go outside. Try singing.