I find it very likely that there are other species out there, species that have become civilized, been able to reach the stage of technology needed for space travel, who altruistically search space for other species in critical stages, species needing help to overcome the birth problems.
Humanity is experiencing such a crisis now, and some people consider that the humanity will fail, become extinct because of its lack of civilization and love. Other believe that humanity will manage with the crises and become a master of technology, freedom and peace and conquer space. I belong to the latter group, but wouldn’t mind seeing some help coming from above.
Then there is a group of people who see space as a resource, with almost infinite amounts of metals, minerals and energy. I feel somewhat sick about this kind of thinking, as humanity has not yet learned to become civilized, there are still humans fighting on this planet, there are humans robbing other humans of their resources, there are humans wasting our resources in an insane way. I really hope this group of people will never reach space, as they may not be able to handle it. They may rob or fight other species out there, to steal there resources. Then I would feel very very ashamed of being human