Snow, a 17-year-old polar bear photographed above in June, came to the Reid Park Zoo in February with dermatitis. She died Sept. 3. MAMTA POPAT / ARIZONA DAILY STAR 2012 Kim Smith Arizona Daily Star ...

Polar bears are resilient animals. Scientists issue warning over worrisome conditions that could leave polar bears stranded — ...

Discover reviews, ratings, and trailers for The Little Polar Bear on Rotten Tomatoes. Stay updated with critic and audience scores today!

We constructed a mutation of lctP (lctP::kan) using a polar kanamycin-resistance cassette to knock down expression of the entire operon. RT-PCR of the wild-type locus using primers specific for the ...