Complex sentence: The zoo specializes in breeding and exhibiting some of the world's rarest cold climate species, having sucessfully bred Red Pandas, Takin, Pallas's Cats, and the Russian Red Tree Squirrels.
Split into simpler sentences: The zoo specializes in breeding and exhibiting some of the world's rarest cold climate species. Sucessfully breeding Red Pandas, Takin, Pallas Cats, and Russian Red Tree Squirrels.