Originally posted by joneschr
"Against its will, all creation was subjected to God’s curse. But with eager hope, the creation looks forward to the day when it will join God’s children in glorious freedom from death and decay. For we know that all creation has been groaning as in the pains of childbirth right up to the present time. And we believers also groan, even though we have the Holy Spirit within us as a foretaste of future glory, for we long for our bodies to be released from sin and suffering. We, too, wait with eager hope for the day when God will give us our full rights as his adopted children, including the new bodies he has promised us" (Romans 8:20-23).
Most of the inhabitants in Noah's ark were animals, if you remember. Noah's ark was a prefigurement of the end times. "But as the days of Noah were, so shall also the coming of the Son of man be" (Matthew 24:37). As Paul points out in the passage from Romans above, animals have never sinned and were subject to God's curse against their will. Therefore, when Christ returns they will fare better than unrepentant sinners will.