It was a routine walk for one Colorado woman and her dog, but it ended in tragedy. An hour later, the dog was dead. The woman was shocked by what killed him.

The three-year-old Border Collie chewed on some plants as the family took a walk through the Horsetooth Reservoir. Shortly after the walk, the dog didn't look well. He was taken to the vet.

According to the vet, the plant the dog was chewing on was deadly water hemlock. In July, the plant thrives in wetlands, marshes and river banks across America, blooming with tiny clusters of white flowers. A few bites of the plant can kill a large dog in less than two hours.

A dog poisoned with water hemlock may first appear nervous and pupils will dilate. This will progress to twitching, drooling, convulsions and seizures. If a tiny amount was eaten and dogs survive the toxic effects, they are often left with permanent heart or skeletal muscle damage. If dogs eat too much and don't get medical help quickly, this can be followed by respiratory paralysis and death.

If your dog does eat hemlock, it's necessary to induce vomiting and get him to the vet immediately.

Source: Hero Viral

Photo: Hero Vira, Wikipedial