Assuming an optimal decay rate, readable DNA fragments would survive for roughly 1.5 million years. The last non-avian dinosaurs perished 66 million years ago. The temporal gap renders the recovery of dinosaur DNA mathematically impossible. Unlike the recovery of Woolly Mammoth DNA (roughly 4,000–40,000 years old), dinosaur soft tissue, even when preserved in amber or deep-freeze scenarios, would lack the nucleotide sequence integrity required for cloning. Therefore, the "Jurassic Park" methodology is scientifically defunct.
The popular understanding of dinosaur resurrection, heavily influenced by Michael Crichton’s Jurassic Park , relies on the premise of preserved genetic material. Scientific reality, however, diverges significantly from this narrative. To determine if dinosaurs can return, one must distinguish between cloning —creating a genetic replica of an extinct organism—and reverse engineering —creating a novel organism that expresses the ancestral traits of an existing lineage.
However, significant challenges remain.
In summary, while the idea of dinosaurs returning is intriguing, it's unlikely to happen in the near future. However, ongoing research in genetics, conservation, and evolutionary biology will continue to expand our knowledge and appreciation of the natural world.
The field of Evo-Devo (Evolutionary Developmental Biology) suggests that evolution often works by tweaking the timing and intensity of gene expression rather than inventing new genes. This suggests that a "dinosaur" can be built by modifying the developmental "recipe" of a chicken. will dinosaurs come back in the future
: Genetic material is fragile. Its half-life is roughly 521 years , meaning it degrades completely after about 6.8 million years . Since dinosaurs went extinct 66 million years ago, their original genetic blueprints are long gone.
Because original DNA is unavailable, scientists are exploring three speculative workarounds to bring back dinosaur-like creatures: Assuming an optimal decay rate, readable DNA fragments
Here’s a helpful, balanced review of the question: Will dinosaurs come back in the future?