Where is Buddy's real parents on dinosaur train?

In "Dinosaur Train," Buddy's real parents, Mr. and Mrs. Pteranodon, are not present in the series as they are not part of Buddy's adoptive family. Buddy is a young T. rex who was adopted by a family of Pteranodons. Throughout the series, Buddy often goes on adventures with his adoptive family and friends, exploring the prehistoric world and learning about different dinosaurs. The show focuses on themes of family and belonging rather than the search for his biological parents.