What are Aphrodite's unique traits?
Aphrodite's most unique trait would probably be her immense beauty. However, Aphrodite was also very jealous, vain, and easily offended.
The aye-aye has a mix of traits found on other animals, so there is nothing "unique" about it's appearance. However, the combination of traits is unique for primates. They have a fox-like tail, bat-like ears, ever-growing front teeth (like a rodent), and a skeletal middle finger. (The striped possum from Australia also has a skeletal finger, so even this trait is not unique.)