what does this quote mean

Answer: It means that not only the strongest and most intelligent people who survive, but the most who are willing to change
I hope this helped
Answer:
This means that the species who are able to overcome change is the one who is most likely to survive longer.
Explanation:
The strongest is going to survive for a bit and so aren't the intelligent ones but if they cannot survive in different environments they will die. However, the ones that are capable of change in habitats will live much longer.