Early Spring Butterfly

I saw a Mourning Cloak butterfly today in the yard about noon, with the temperature only in the low 40's. I saw one about three weeks ago too, when we had a surprise (and teasing) day of 60 plus degrees. I also just tonight read about a frog that can sustain much of it's body tissue freezing and live to tell about it ! These critters have developed amazing feats of adaptation through thousands of years of contending with the local climate. I have a motley cluster of native plant seedlings from last year in plug pots sitting on a back patio which have also toughed it through a winter that would give lesser plants pause, or a ticket to the compost. What changes will the next 20 years bring that will give even species adapted to this region pause, or a group pass to the compost? Does my gardening give me faith, or do I bring my faith to the garden?