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  2. Canine tooth - Wikipedia

    en.wikipedia.org/wiki/Canine_tooth

    They are often the largest teeth in a mammal's mouth. Individuals of most species that develop them normally have four, two in the upper jaw and two in the lower, separated within each jaw by incisors; humans and dogs are examples. In most species, canines are the anterior-most teeth in the maxillary bone.

  3. Mandibular canine - Wikipedia

    en.wikipedia.org/wiki/Mandibular_canine

    The canine teeth are able to withstand the tremendous lateral pressures from chewing. There is a single cusp on canines, and they resemble the prehensile teeth found in carnivorous animals. Though relatively the same, there are some minor differences between the deciduous (baby) mandibular canine and that of the permanent mandibular canine.

  4. Dog anatomy - Wikipedia

    en.wikipedia.org/wiki/Dog_anatomy

    Dogs have disconnected shoulder bones (lacking the collar bone of the human skeleton) that allow a greater stride length for running and leaping. They walk on four toes, front and back, and have vestigial dewclaws on their front legs and on their rear legs. When a dog has extra dewclaws in addition to the usual one in the rear, the dog is said ...

  5. Mammal tooth - Wikipedia

    en.wikipedia.org/wiki/Mammal_tooth

    The number of teeth and their function can vary widely between species, with some dolphins having over a hundred teeth in their jaws, while the narwhal has two functional teeth in its upper jaw which grow into long tusks in males. The tusk is used in feeding, navigation and mating and contains millions of sensory pathways, making it the most ...

  6. Dentition - Wikipedia

    en.wikipedia.org/wiki/Dentition

    This is seen, for example, throughout The Cambridge Dictionary of Human Biology and Evolution. The greatest number of teeth in any known placental land mammal [specify] was 48, with a formula of 3.1.5.3 3.1.5.3. [9] However, no living placental mammal has this number. In extant placental mammals, the maximum dental formula is 3.1.4.3 3.1.4.3 ...

  7. Skin conditions in dogs: Symptoms, causes, and how to help - AOL

    www.aol.com/skin-conditions-dogs-symptoms-causes...

    The dog then causes further trauma to the skin by itching and rubbing at the area, leading to a secondary bacterial infection." Acute moist dermatitis: Symptoms A patch of moist, inflamed skin ...

  8. Vestigiality - Wikipedia

    en.wikipedia.org/wiki/Vestigiality

    In humans, the vermiform appendix is sometimes called a vestigial structure as it has lost much of its ancestral digestive function.. Vestigiality is the retention, during the process of evolution, of genetically determined structures or attributes that have lost some or all of the ancestral function in a given species. [1]

  9. Worrying About This Common Concern Can Accelerate Cognitive ...

    www.aol.com/worrying-common-concern-accelerate...

    Regular exercise, spending time with loved ones, getting enough restful sleep and engaging your brain are examples, according to Dr. Small. He says these “have all been shown to lower the risk ...