The above text shows that Mars was changing them somehow, especially physiologically. Their skin was getting darker and their eyes goldish yellow.
As he lay in bed, Mr. Bittering felt his bones shift...
His wife lay beside him. She had turned dark and golden-eyed because of the sun. She and their children were subject to the same change. It was the sun. It was the weather on Mars.
There was also the phenomenon of the green star that seemed to alter his mind to accommodate martian vocabulary. For without having learned it, he said "Lorrt" which meant "Earth" in martian language.
Paragraphs 144 to 151 also depict that he was growing taller and leaner. His appetite had also taken an upward spiral. Dark They Were, and Golden-Eyed is a short story written by Ray Bradbury.
See the link below for more exercises related to Ray Bradbury's work:
https://brainly.com/question/822401