Dog playing (IMAGE) Eötvös Loránd University Caption Researchers at ELTE Department of Ethology, Hungary designed an experiment to investigate whether dogs can recognize their owners based on pre-recorded speech. The results provided the first evidence that dogs are capable of voice-based individual-level recognition of humans. The study was published in Animal Behaviour. Credit Photo: Kinga Surányi Usage Restrictions Credit must be given License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.