Complex sentence: The reticulated giraffe is among the most well-known of the nine giraffe subspecies, and together with the Rothschild giraffe, it is by far the giraffe most commonly seen in zoos.
Split into simpler sentences: The reticulated giraffe is among the most well-known of the nine giraffe subspecies. Together with the Rothschild giraffe, it is by far the giraffe most commonly seen in zoos.