A. Collar that translates barks

B. Gas mask

C. GPS dog collar

D. Augmented reality glasses

Although collar-mounted AI-based bark analysers can help evaluate dog vocalizations by identifying patterns, current consumer apps are generally considered gimmicks rather than accurate, scientifically backed translators. Experts note that dogs communicate primarily through body language, not sound, making a true "bark translator" scientifically unlikely.

During the First World War, mustard gas was used, and not only soldiers but also dogs were fitted with gas masks. At the start of the Second World War, it was suspected that gas would be used again, and second-generation masks were provided (based on filtration rather than chemical neutralization).

Many GPS-based trackers exist that can be mounted on dog collars.

During tactical operations, audible commands may not be possible in loud environments. To compensate for this, commands can be given to dogs via vision cues via augmented reality (AR) goggles.

The correct answer is A, the collar that translates barks does not exist.

• For more information: https://www.awm.gov.au/collection/C166295, https://commandsight.com/