I don't thing that cloning would be our best bet. And would be really expensive making it impractical. Specially with those huge animals. Would need incredibly

I don't thing that cloning would be our best bet. And would be really expensive making it impractical. Specially with those huge animals. Would need incredibly complex and humongous laboratories just for trying to hold each 3000 Kg newborn. Avoiding contamination and making the embryo cameras sterile for months would be a real headache. We must forget the idea that cloning will save the day someday, be smart and use our narrow and shrinking interval of opportunity to act now.