What happens to holiday trees that don't sell? In Berlin, some trees that didn't find a home become gifts for elephants to unwrap! On Friday, fresh trees were brought to the Berlin Zoo for the large mammals to enjoy. "The animals can fight with them, they can rub themselves against them, they can throw themselves over them and do various other things with these fir trees," Curator Florian Sicks said. The zoo only takes unsold trees from select vendors. (AP News)