The only possible exceptions I can think of are fish(I imagine gills and mouth are not connected but don’t really know). I am excluding bacteria and viruses and I believe they don’t really breath(correct me if I’m wrong).

  • OutlierBlue@lemmy.ca
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    14 hours ago

    Yes, most animals can. Insects don’t breathe the way we do at all. They have separate openings for their respiration.

    Amphibians start out with gills and only in adulthood do they develop lungs (although the axolotl keeps its gills for life) and can respirate through their skin.

    Mollusks either respirate through their skin, gills, or through an air sack.

    In none of those cases do the respiratory and digestive tracts cross. And those groups of animals outnumber us by far.

    • vrekOP
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      7 hours ago

      Very interesting thanks… Now to do more research because this has buged me

  • otp@sh.itjust.works
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    18 hours ago

    Most mammals (if not most animals) breathe through their noses.

    People complaining about humans being designed poorly don’t know that this design “flaw” is what allows us to be able to speak.

    Yes, this increases our risk of dying by choking. But despite that, being able to speak has been so evolutionarily advantageous that our increased risk of dying is inconsequential in the grand scheme of things.

    • I’d have put the vocal chords in the nasal passage, allowing humans to still talk while eliminating the choking problem.

      The laryngeal nerve is a much more stupid design, simply because there’s no practical reason for it to be the way it is.

      Also: if we didn’t have the ability to breath through our mouths, swimming as a sport would be harder, since we don’t have the ability to close our nose-holes.

      • OutlierBlue@lemmy.ca
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        16 hours ago

        I’d have put the vocal chords in the nasal passage, allowing humans to still talk while eliminating the choking problem.

        Exactly. A very simple correction to the design would allow for both.

        The laryngeal nerve is a great example of how flawed our bodies are. A few more are:

        • Our back is terrible for walking upright. It evolved as a horizontal support and doesn’t work well when compressed.
        • Our hips are too narrow for the size skull we give birth to. Many women die from this without healthcare.
        • Our eyes suck. A lot of people need corrective lenses from a young age. This gets even worse as we age.
        • Speaking of eyes, our retinas are backwards. The nerves that send the signals back to our brains run in front the receptors that pick up the light. We have a blind spot because those nerves need to pass through to reach the brain.
      • angrystego@lemmy.world
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        16 hours ago

        Quite a lot of people can close their nose-holes by curling up their upper lip. I’m not one of them, unfortunately.

  • Carnelian@lemmy.world
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    21 hours ago

    Dolphins are the most classic example, having the blow hole.

    Insects ‘breath’ through their ‘skin’

  • NABDad@lemmy.world
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    20 hours ago

    Guinea pigs are obligate nasal breathers. They only breathe through their mouths when in extreme respiratory distress.

    They are also absolutely adorable.

  • Infrapink@thebrainbin.org
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    20 hours ago

    All arthropods and annelids have completely separate breathing and eating apparatuses. Molluscs don’t even breathe; like fish, they have other ways to absorb oxygen.

    • deranger@sh.itjust.works
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      18 hours ago

      Horses still breathe through the same pharynx that food goes through. The question isn’t mouth vs nose breather it’s “what animals have separate pathways for food and air”, so a horse doesn’t qualify. It’s harder for a horse to inhale food because of the soft palate but it’s not impossible.

  • bluGill@fedia.io
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    20 hours ago

    IN fish water goes in through the mouth and out through the gills, so the connection is required. Some might be able to take water in and out through the gills, but the normal ways is in the mouth out the gills.

    • vrekOP
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      7 hours ago

      Wait, so fish inhale water… Some process takes place separating the water and oxygen atoms and then they exhale the carbon dioxide and hydrogen out their gills? Or am I still completely wrong?

      • antlion@lemmy.dbzer0.com
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        6 hours ago

        Not really inhale-exhale, since they don’t have lungs. Kinda like when you sweat and you can feel the breeze cooling you under your arms. But instead of under your arms it would be on your neck, and instead of cooling you’d be respirating. But yes as the water moves past the gills, the blood is receiving oxygen and expelling CO2.