Many people weren't allowed to take their pets, and many people who remain, refusing to be "rescued" are there because they have animals to look after. It's all shockingly sad, but the times I can't watch the tv coverage is when they show the poor animals.
I did see a TV crew try to get some water to a dog who was surviving, barely, on top of an overturned boat. And I had tears watching a helicopter rescue of two guys and their dog from the roof of a house. That little dog jumped into the rescue basket with the guy, now way was he being left behind.
It was heartening to see the pet rescue begin, boats full of dogs, and yes, cat carriers full of cats. And they are also being lifted into helicopters to go to the rescue facilities.
The biggest worry, aside from the scores of animals left behind, will be disease, with these poor animals left to fend for themselves in the putrid flood waters.