If I were a mad scientist, one of my goals in life would be to use all of my bio-engineering know-how to create a real-life Yoshi.
Something roughly the shape of a Velociraptor, that comes in several different colours, has a Chameleon-like tongue, is born with boots and a saddle (or grows a saddle when it matures into an adult), sprouts feathered wings when carrying a blue turtle shell in its mouth, and lays eggs that hatch mushrooms with eyes that can crawl along the floor and cause humans to double in height when consumed.
I think all that is fairly feasible.
I just might have trouble getting it to lay eggs that hatch clouds with faces that rain down coins with faces, but I suppose I can live without that. As long as it can still spit a trio of fireballs with eyes I’ll be happy. 🙂