Dogs seem to have energy tucked away in places humans will never understand.
They can run, explore, play, and chase excitement for hours, then somehow still act like the day has only just begun. Even when they are tired, the promise of more fun can keep them going.
Sometimes, one activity becomes everything.
A dog can love something so much that the rest of the world practically disappears. Food, rest, and common sense all seem less important than whatever has captured their whole heart.
That was the case for one dog in New Jersey.
Her owner noticed something strange happening to her fur. It was turning green, and before long, the odd reason behind it became clear.
A Summer Day Leads To A Strange Discovery

On a warm summer afternoon, Tori relaxed by the pool while her dog swam with endless enthusiasm.
Her pup was completely absorbed in the water, but eventually came over to her, and that was when Tori spotted something unusual.
The dog’s fur had started to take on a faint green shade.
The explanation was straightforward. Copper sulfate, commonly used as an algicide in pool water, reacts in a peculiar way when it touches dog fur.

This reaction only happens when copper levels in the pool are too high, which explained the sudden change in her dog’s coat.
Since the pup spent hours swimming nearly every day, it was no surprise that the green tint appeared.
Tori tried to discourage her dog from swimming further, worried it might not be safe, but the pup resisted, unwilling to leave the water behind.
Online Reactions To The Green Fur

Amused and curious, Tori filmed several clips of her dog enjoying the pool, capturing the moments when the green tint was visible, and shared them on her TikTok channel.
Viewers quickly responded with humorous and concerned comments. One person commented: “This is actually really genuinely dangerous cos if she goes in the pool too much all day everyday she WILL turn green and then she could try defying gravity”
Another viewer added: “Such an interesting side effect of spending too much time in the pool. I think my dogs have to try this sometime soon.”
Someone else commented: “Just the thought of not getting in the pool gave that poor baby a panic attack.”

The video highlighted the dog’s joy while also showing the unusual green fur, making the scene both entertaining and slightly concerning.
Lastly, somebody commented: “Use ketchup. I used to be a competitive swimmer and the blond parts of my hair would turn bright green. Soaking the hair with ketchup removes most of the colour.”
It was certainly an unusual idea. Whether it would fully work was uncertain, but it seemed harmless enough to try.
In the end, the short clip gathered millions of views, and it was uplifting to see so many people offering suggestions to help the pup continue enjoying her beloved pool time.
