We’ve all been there – one too many slices of garlic bread and you’ve woken up with breath that smells like an Italian restaurant, and probably not in a good way. Humans have been known to have some pretty pungent odors waft out our mouths, but what about other animals? The rest of this article is behind a paywall. Please sign in or subscribe to access the full content.

The answer to the question “what has the worst breath in the animal kingdom?” is not clear-cut. Regrettably, there isn’t much in the way of scientific literature on the topic. However, there is some anecdotal evidence to suggest some creatures have breath that absolutely reeks.

What causes bad breath?

Bad breath can be caused by multiple factors , including improper oral hygiene – fairly common for animals without ac

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