Canids:
* Wolves: They bark as a form of communication, especially for warnings or territorial defense.
* Coyotes: Similar to wolves, they bark to communicate within their packs and alert others to danger.
* Foxes: They bark, howl, and make other vocalizations to communicate with each other.
Other Mammals:
* Sea lions: They bark loudly to communicate with each other, especially during mating season.
* Hyenas: They make a series of high-pitched "laughing" barks, especially during hunting or to scare off rivals.
* Gibbons: While not a true bark, they make a loud, high-pitched "whoop" that serves as a territorial call.
Birds:
* Laughing kookaburras: These Australian birds have a loud, echoing call that sounds like laughter or a bark.
* Some species of owls: Certain owl species can make a barking sound as part of their calls.
It's important to note that the "bark" of these animals may not always be identical to a dog's bark, but it does share a similar purpose – communication, warning, or defense.