🐶❤️🐶 Why do dogs have a third eyelid? 🐶❤️🐶
In today's issue:
-Meet our adoptable dog of the day
-Enjoy a laugh with our dog meme of the day
-Get great information in our featured article
-Take our action of the week
-Check out our family photo of the day
Adoptable Dog(s) of the Day: Teddy!
Lovable pup adoptable from Bob's House for Dogs in Eleva, Wisconsin

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Meme of the day: They're innocent!

12 Surprising Money Mistakes Even Smart People Make
You’re smart about saving money, like shopping clearance racks, limiting eating out, and choosing affordable streaming services. However, there are still some cost-cutting tips you might not know yet. Once you discover these, you could quickly find extra cash in your pocket.
The Secret Shield Behind Your Dog’s Soulful Eyes
If you have ever caught your dog mid-snooze with their eyes half-open, you might have noticed a pale, cloudy tissue slipping across the corner of their eye. It can look a little startling at first, but rest assured—it isn’t a sign of an alien transformation. You’re simply catching a glimpse of one of nature’s most fascinating canine features: the third eyelid.
Known scientifically as the nictitating membrane (or the haw), this hidden layer sits safely tucked inside the inner corner of each eye. While humans lost most of their own third eyelids through evolution—leaving us with only that tiny pink bump in the corner of our eyes called the plica semilunaris—our four-legged best friends kept theirs for very good reasons.
What Does the Third Eyelid Actually Do?
Think of the third eyelid as a built-in pair of protective goggles equipped with its own mini windshield wipers. Dogs experience the world headfirst—sniffing through tall grass, chasing balls through dusty yards, and sticking their heads out of car windows to catch the breeze. The nictitating membrane serves several critical roles to keep their eyes healthy through it all:
- Built-in Protection: Unlike top and bottom eyelids, the third eyelid moves horizontally across the eye. When a dog dives through bushes or runs through thick tall grass, this membrane sweeps across the cornea like a natural shield against twigs, dirt, and stray debris.
- Essential Hydration: Tucked inside the third eyelid is a vital lacrimal gland responsible for producing roughly 30% to 50% of your dog’s natural tear film. Every time the membrane sweeps across the eye, it spreads a refreshing coat of tears containing crucial nutrients and moisture.
- Immune Defense System: The tissue is rich in lymphoid tissue, which acts as a localized frontline defense against bacteria, dust, and environmental allergens that try to invade the eye.
- Cleansing Action: Just like a windshield wiper, the membrane glides across the cornea when your dog blinks or closes their eyes to sweep away microscopic grit before it can cause a scratch.
Why Do We Rarely See It?
Under normal circumstances, the third eyelid stays hidden out of view while your dog is fully awake and alert. However, it naturally slides up when your dog gets sleepy or enters deep relaxation. Because the muscles surrounding the eyeball relax, the eye sinks slightly back into the socket, allowing the membrane to passively slide across to protect and lubricate the eye while they rest.
If you ever notice the third eyelid remaining visible while your pup is wide awake, playing, or eating, it’s worth paying attention. A persistently visible membrane—or a swollen red mass often referred to as "cherry eye"—is simply your dog’s body signaling that the eye might be dry, irritated, or experiencing a minor infection. A quick, friendly checkup with your veterinarian will usually have those bright, soulful eyes back to normal in no time.
So the next time you see that strange little membrane peek out during a cozy afternoon nap, you can smile knowing it’s just nature’s custom-built safety feature hard at work protecting your pup’s favorite way to look at you.
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Dog Food and Supplement Recalls
Here are the recent recalls and advisories:
- Oma's Pride - Canine Food: Contaminated with Salmonella
- Pedigree - High Protein Chopped Chicken & Duck Flavor Wet Dog Food: Potential Plastic Contaminants
- Steve's Real Food - Freeze-Dried Chicken Recipe Cat and Dog Food: Possible Low Thiamine Levels (B1)
- Raaw Energy - Dog Food: Potential Listeria Contamination
Family Photo of the Day: Beau!

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