Most dogs can learn their name and basic commands like "sit" or "walk." Some smart pooches are even able to build vocabularies of over 100 object names with consistent training. Now, a study suggests that a few exceptionally bright dogs may learn new words simply by listening in on their owners’ conversations.

The team, led by Shany Dror at Eötvös Loránd University in Hungary, reached this conclusion after observing ten "gifted" dogs. These pooches had previously demonstrated an uncommon ability to memorize hundreds of toy names. The group included several breeds, such as border collies, Australian shepherd mixes, and Labrador retrievers.

The researchers had two main goals. They wanted to see if dogs could learn words without direct instruction. They also wanted to determine if dogs pay attention to human cues — like where we look, how we act, or how we speak — to understand words not spoken to them.

To test this, the owners engaged in casual conversations with another person while their dogs watched. They did not speak to the dog at all but mentioned the names of new toys as they passed them back and forth. For example, they might say, "This is your armadillo. See the little feet and tail." These indirect exposures lasted about eight minutes per toy across several days.

At the same time, the researchers also ran a control test by introducing some new toys to the same dogs in the usual way. In this case, their owners repeated the toy names as they let the dogs play with them. Later, all the toys — both the directly taught ones and the overheard ones — were placed among familiar toys in another room. The owners then asked the dogs to fetch a specific toy by name.

The results, published in the journal Science in January 2026, were remarkable. The dogs performed well in both cases. When they were directly taught, they fetched the right toy about 90 percent of the time. When they learned by overhearing, they still picked the right toy about 80 percent of the time. This showed that dogs can learn new words without direct instruction.

Before you try this on your pooch, note that not every dog has this skill. When the experiment was repeated with family pets that knew fewer words, they could not reliably find the new toys. This suggests that listening to conversations may be a rare talent, found mostly in exceptionally smart dogs.

Beyond showing just how smart some dogs can be, the study also highlights how much everyday interactions matter. How we talk around our pets, the way we look at them, and even small gestures may help them learn more than we realize.