Do animals go to heaven?

Unsurprisingly, religious opinions vary. But is this true? "This is a widespread question on the Internet, with more than 4.3 million sites trying to address the issue in some fashion."

I searched for animals in heaven with Google and Bing. Google reported nearly 21,200,000 matches, but I suspect that many of them are duplicates. Bing only reports 1,690,000. That's a lot of people worrying about the eternal destiny of their pets.