Humans and dogs have lived side by side for countless years. You could believe that you are an expert on dogs after spending so much time with them.

However, until recently, researchers did not devote much attention to dogs. It was never considered important to conduct in-depth studies on how humans interact with these creatures.

But a Border Collie named Chaser has won viral praise for being “the brightest dog in the world.”

This charming lady is owned and cared for by 86-year-old retired psychology professor John Pilley. She can never be without John, and he treats her like a kid.

Since Chaser was a young child, John has demonstrated for her by giving the toys names. He has been teaching her words and short sentences for the past nine years, up to five hours per day, five days per week.

He treats Chaser like he’s a two-year-old. As a result, Chaser has a vocabulary that is three times as large as a toddler’s.

Over a thousand toy names are known to the sweet girl. John also offered to display Chaser’s collection to the interviewer on his back deck.

All of these are included, including almost 800 animals, 116 different balls, and 1022 plastic toys. Each person had a unique name.

John kept track of every toy he owned and tested Chaser rigorously for three years to prove it. The adorable girl properly identified 95 percent or more of the objects in each test.

After the outcome was reported in a journal, Chaser gained notoriety online. But it goes beyond the names of the products. Chaser is also aware of the differences in meaning between verbs and nouns.

Brian Hare, an evolutionary anthropologist at Duke University, claims that Chaser is the most important dog in the annals of contemporary science.

Dr. Greg Burns, a neuroscientist at Emory University, has been researching the human brain for more than 20 years. In any case, he had to find the answer to the fundamental problem: Does your dog really like you?

This inspired Burns to look into the dog brain. His research suggests that dogs can identify an important person by smelling their owner’s scent.

In addition, Hare claims that when people and dogs make eye contact, the hormone of love known as oxytocin is released. When they interact and play, they also do this.

Last but not least, if you’re wondering how Chaser did on Brian Hare’s IQ exam, she scored exceptionally well in the areas of thinking and memory.

Here is the video: