The Iran war reached the three-week mark as about 2,200 more U.S. Marines and three more warships are headed toward the region, two U.S. officials said.
Iran's Natanz nuclear enrichment facility was hit by an airstrike, the Iranian news agency Mizan reported on Saturday. The war is entering its fourth week.
Humans share many of the same genes as dogs. In 2022, Anderson Cooper reported on how scientists were using that similarity in a field called comparative oncology, testing new cancer treatments on dogs and humans.
