Are wormholes natural?

Could you possibly enlighten me on a fascinating concept? I've been wondering, are wormholes actually occurrences found in nature? Or are they merely theoretical constructs proposed by physicists in their attempts to explain the complexities of the universe? I'm genuinely curious to know if these supposed bridges connecting distant regions of spacetime are indeed something that exists naturally in our vast and mysterious cosmos. Would you be able to shed some light on this matter for me?