Complex sentence: The zoo's main goal is to entertain, rather than to educate-however many rare species have been successfully bred in the zoo-including the first Californian Sea Lion to be born in the Middle East in 2002.
Split into simpler sentences: The zoo's main goal is to entertain, rather than to educate. However, many rare species have been successfully bred in the zoo-including the first Californian sea lion to be born in the Middle East in 2002.