Which is the only mythological animal in the Chinese horoscope?

Not true. I saw one in 'How to train your Dragon'.

my Dad, who would be 108 if still on the planet, was a Dragon 🐉 Or born in the Year of 😉

Razzie , me too. December 9, 1976 and not much luck in my life either seeing at the dragon is considered to be lucky and in western astrology Sagittarius is considered a lucky sign and luckiest of the zodiac ...wonder when this luck is going to kick in for my life? lol hopefully sooner than later

I was born in the year of the Dragon, not much luck in my life!