What is a therian?

Please no bullying, feel free to interact others.
Therian tips
Therianthropy
Therians
Tips for therians and different species.
Describes the different between furry/ies, otherkins, and therians.
I am a lynx and cat therian, but I will try my best to help you if you are another therian, writing a story with one of your characters being a therian, or just want to know about therians.