Because they do not possess the same vocal cords arrangement as Humans.
<span>Barking cause lower amount of muscle strain in Vocal cords compared to when humans are yelling.
</span>This make dogs able to barks endlessly without having to create any damage on their vocal cords.
The particular stage in the puberty ceremony where male Australian aborigines are secluded from the rest of society and undergo a tribal lore cram course and the ordeal where they are traumatized is part of a teaching method that makes sure that they will never forget what they are taught is referred to as the stage of transition.
This is false!
Whenever you use a source in your work, or an idea that is not yours, you should cite it. This applies to unpublished work, too.
Think about like this- in this case no one can ever accuse you of plagiarism- after all you were open about the source in the first place!