Personally I think that any species that lasts millions of years it must survive some very trying times and come through.Alligators and Crocodiles are two good examples they have been around for much much longer than humans have and they surely have survived several near extinction events.
Even humans just barely made it past the last ice age and that actually wiped out a cousin to modern humans the Neanderthals(some speculate that the last of them inter bred with modern humans).
If there are and feel that there are advanced life forms in the universe at or above humans level intelligence I am sure like gators they must have survived near extinction several times and having better cognitive abilities they learned.We humans learned we did survive the last ice age by adapting to the change only once you live in relative ease it is easy not to fear long term dangers.
One type of event that could cause a near extinction would be one of the major volcanoes having a massive eruption there are several that have enough size to pump out enough ash to bolt out the sun for up to a year.That would be very serious and there is nothing that we can do about it.
|