I would not automatically save the baby first.
It is natural for any species of animals to care for its own. A lack to do so, or the lack of will to do so, is un-natural and even perverted.

'Caring' for the enviorment, to me, is not caring for the endangered Purple Spotted Brazillian Michael Jackson Beetle, but rather, understanding that keeping the enviorment in a good state would mean our further survival, and over-all better living conditions.