Dragons don't exist (as far as we know), but some of their individual characteristics can be found throughout the animal kingdom. It would have taken quite a few turns for natural selection to have produced dragons, but if you're willing to stretch a bit, most classic dragon characteristics do exist in other species.

Is it physically possible for dragons to exist?

"Yes. But the operative word is 'might'." A potential process could involve modifications to an existing large reptile - for instance, a Komodo dragon. ... The first issue could make the animals overheat; the second might mean the edited reptile's bones would be too weak to hold its weight.

Do dragons exist in 2021?

2021 is a mixed year for Dragons — those born in a Chinese zodiac year of the Dragon. Although there are certain opportunities in their careers, just a little carelessness is likely to cause adversity.