updated 10/09/2006 AT 01:00 AM EDT
•originally published 10/09/2006 AT 01:00 AM EDT
In other ways Samuel is already taking after his older brother Zachary, 3. "Zachary is very tall for his age, and Samuel's also enormous," says Vargas, 44. "He's just over a month and already 12 lbs. I think we're going to have another very big boy here." For now, they have a bit of a colicky boy—"I haven't slept more than 90 minutes at a time in a month," says Vargas—but fortunately Cohn's vocals provide for some comfort. "Marc is trying the songs he's working on for his new CD on the baby," says Vargas, who is expected back at her anchor desk in November. The verdict? Says Vargas: "The mellower ones definitely work better."
SAMUEL WYATT COHN
August 16, 2006
7 lbs. 9 oz.
For more of Elizabeth Vargas on working moms, sibling rivalry and her post-baby body, go to PEOPLE.COM/VARGAS