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  2. Estrous cycle - Wikipedia

    en.wikipedia.org/wiki/Estrous_cycle

    A female dog is usually diestrous (goes into heat typically twice per year), although some breeds typically have one or three cycles per year. The proestrus is relatively long at 5 to 9 days, while the estrus may last 4 to 13 days, with a diestrus of 60 days followed by about 90 to 150 days of anestrus.

  3. Canine reproduction - Wikipedia

    en.wikipedia.org/wiki/Canine_reproduction

    During proestrus and estrus, females may have a clear, blood tinged, or bloody discharge. Dogs during these stages are often informally referred to as being in heat. The length of these cycles varies greatly among breeds and even between individuals of the same breed. Proestrus and estrus can last anywhere from 5 days to 21 days. [5] 3.

  4. Dog - Wikipedia

    en.wikipedia.org/wiki/Dog

    This is the time at which female dogs will have their first estrous cycle, characterized by their vulvas swelling and producing discharges, usually lasting between 4 and 20 days. [80] [81] They will experience subsequent estrous cycles semiannually, during which the body prepares for pregnancy.

  5. How to Read Dog Body Language, According to a Dog Trainer - AOL

    www.aol.com/read-dog-body-language-according...

    The dog expert says that some breeds present different body language and cues due to their body types. "For example, some dog breeds don’t have long tails, so you’d have to know the breed to ...

  6. 21 Dog Breeds That Can Handle Hot Weather (and 6 That ...

    www.aol.com/21-dog-breeds-handle-hot-160000402.html

    These dogs can withstand high heat without tiring and need—or rather, love—tons of exercise. In fact, an Australian kelpie named Abbie is the top surfing dog in the world because that is a ...

  7. AOL Video - Serving the best video content from AOL and ...

    www.aol.com/video/view/how-to-understand-your...

    The AOL.com video experience serves up the best video content from AOL and around the web, curating informative and entertaining snackable videos.

  8. Dog breeding - Wikipedia

    en.wikipedia.org/wiki/Dog_breeding

    Dogs reach puberty between 6 and 24 months old, at which age female dogs will start having an estrous cycle. There are four stages of estrous: proestrus, estrus, diestrus, and anestrus. A dog in estrus, also known as being "in heat", can become pregnant during this 3- to 21-day period. [3]

  9. Dog behavior - Wikipedia

    en.wikipedia.org/wiki/Dog_behavior

    Some dogs will also resource guard their owners and can become aggressive if the behaviour is allowed to continue. Owners must learn to interpret their dog's body language in order to try to judge the dog's reaction, as visual signals are used (i.e. changes in body posture, facial expression, etc.) to communicate feeling and response. [54]