Supervene

soo-per-VEEN (/ˌsuːpəˈviːn/)

to occur as something additional, often unexpected.

“If environmental changes supervene, goldfish can quickly adapt, demonstrating memory and learning abilities that last for months.”

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to offer or present something for acceptance.

a lengthy and aggressive speech.

urgent recommendations or advice.

a natural inclination or tendency.

driven or urged to take action.

a difficult or dangerous situation.