几个高三英语翻译及相关问题

几个高三英语翻译及相关问题
Altogether the group of islands formed a little world within itself. 请翻译一下
Darwin first understood the development of different plant species from development in bird speciesthat he observed in Galapagos.请问本句什么意思?“the development of different plant species from development in bird speciesthat he observed ”分析一下结构
The influence of the environment was behind the development of new species.“ behind the development of new species.”是什么意思
It would take a next generation of scientists to bring the importance of the environment on species back in view.请翻译该句且back in view是什么意思
yet ,still两词放在句首有什么意思,用法