I had a lesson reinforced yesterday as our next hen hatched her chicks. There was one late chick having trouble getting our of the egg. Against my better judgement I helped it out. It stayed next to our stove under a hot water bottle for the day and went back under the chicken for the night. The next day I was optimistic as it was weak but mobile. But as time went on it was clear it couldn't look after its self - not brooding under its mum often when it needed to and getting stepped on! So it came as no surprise to find it dead in the evening.
Nature is hard but efficient in ensuring that the strongest survive, we can interfere but it is rarely successful. The human race should remember that nature will deal with us in the same way if we destroy the systems that support us!