Complex sentence: However, this variety of purring seems to be found only in cats in a one-to-one relationship with their caretakers and this "soliciting purr" is different from a cat's normal purring.
Split into simpler sentences: However, this variety of purring seems to be found only in cats in a one-to-one relationship with their caretakers. This "soliciting purr" is different from a cat's normal purring.