I quote from the passage (that is what people were asking for in the comments)
"because of the abundance of homeless animals, pet owners who wish to have their animals cloned are unlikely to adopt an animal from a shelter."
This shows that the passage is talking about unwanted pets saying that those who clone are likely not to adopt when there is so many pets that need homes, by bringing this to attention they show concern for the high numbers of unwanted pets in the section of the passage.
Mr. Einstein has proved that time is just another dimension, just like space. What are Gilbert's personal traits? What motivates Gilbert? ... Gilbert wants to make his father proud so he learns extra information and works very hard
