Sentence examples for has not persisted from inspiring English sources
This behavior of using a letter opener has not persisted.
Apparently, it has not persisted on San Clemente Island, if in fact it ever occurred there at all.
A robust gray seal population has not persisted here in the Gulf of Maine for decades and these animals are challenged to adapt their life history to the new marine environment.
The inflammatory GOP-led rhetoric and scapegoating has not persisted without harmful consequences.
These cost containment policies yielded an immediate effect in the short term that has not persisted over time.
Secondary contact between previously isolated populations can occur when physical isolation has not persisted long enough to result in reproductive isolation between genetically divergent lineages, potentially leading to hybridisation and subsequent allelic introgression.
The problem hasn't persisted only in the United States.
If he had given up, if he had not persisted in clinical trials, you'd never have the successes we have now.
Crick and Watson had to believe in the grand end of their investigations in order to crack the DNA code, and if chemists had not persisted in their quest for a local anaesthetic our visits to the dentist would be far more memorable than they are today.
This may not have been the case if researchers had not persisted in investigating the therapy after early disappointing clinical trials.
