Complex sentence: Typically weighing around three pounds, ringtails are nocturnal creatures, with large eyes and upright ears that make it easier for them to move about in the dark.
Split into simpler sentences: Typically weighing around three pounds, ringtails possess superb hearing and eyes that allow them to move about at night. A nocturnal creature, the ringtail's large eyes and upright ears make it easier for it to move about in the dark.