Passage Summary: Wild condors need more birds to survive, but they can't successfully hatch enough eggs in the dangerous wild, so humans might need to raise them in safety first.

Reasoning: Condor survival requires a population increase, but wild egg-hatching is rare due to environmental threats; captive breeding followed by release is a potential solution.

Analysis: This stimulus sets up a problem (need for population growth) and a barrier (wild eggs don't hatch). The final sentence offers a potential bridge. A strongly supported inference would likely connect the difficulty of wild survival with the necessity of an intervention. If the condors cannot increase their numbers in the wild due to these dangers, then their survival is essentially dependent on finding a way to bypass those wild environmental factors. Look for an answer that treats the captive breeding program as a necessary or highly likely requirement for the species' continued existence.