But how else to explain the seemingly spontaneous appearance of an abnormal allele on the human genome?

Judging from the lavender flowers, spiny fruit and spontaneous appearance, you're probably growing a datura or some other kind of solanacious weed.

He is particularly known for his work in the spontaneous appearance of order in convection, slime molds and chemotaxis.

Mr. Dole's campaign had publicized the "spontaneous" appearance in advance and, as had by now become routine, Democratic hecklers were waiting for him.

Lambert had spent a decade trying to find conditions which would lead to the spontaneous appearance of Autoverse life, without success.

the aparently "magical" spontaneous appearance of life.

The chances of the spontaneous appearance of neutrons now, during our visit, is at least as improbable as drawing a straight flush.

Politicians always prefer to control their ostensibly spontaneous appearances in front of voters, and Hillary is no exception.

However, a model of prion replication must explain both how prions propagate, and why their spontaneous appearance is so rare.

We should permit only live, spontaneous appearances of a minimum duration of two minutes, to allow us more realistic ideas of the candidates.