What s the opposite of extinction

Despite it's ugliness, something like extantion would fit the bill, but i can't find any evidence of such a word.What's the opposite of extinction?Extinction occurs when species are diminished because of environmental forces (habitat fragmentation, global change, natural disaster, overexploitation of species for human use) or because of evolutionary changes in their members (genetic inbreeding, poor reproduction, decline in population numbers).In other words, the conditioned behavior eventually stops.Opposite of extinguished, no longer alight (of fire, candles etc) dormant adjective opposite of having been or happened in the distant past alive coming existent existing extant future living recent forthcoming modern new present prospective to be to come adjective opposite of dead or deceased, or apparently so alive animate live living

When an s delta is present, the reinforcing consequence which characteristically follows a behavior does not occur.It must be fought for, protected, and handed on for them to do the same, or one day we will spend our sunset years telling our children and our children's children what it was once like in the united states where men were free.I hear a screech and i run to see what's happening.In psychology, extinction refers to the gradual weakening of a conditioned response that results in the behavior decreasing or disappearing.Find 8 ways to say extinction, along with antonyms, related words, and example sentences at thesaurus.com, the world's most trusted free thesaurus.