What has two tongues, spikes on their vertebrae, a "toilet claw," a tooth comb, and no index finger?

The Potto. Perodicticus potto.

Come learn all about an amazing animal, hear a heartbreaking story, and get an explanation for their strange body on this episode of Species.

Bibliography: https://docs.google.com/document/d/1QafZ6UU_G8l_m8WnPBqzJ0TQrCtswffUkAlKnWMfe1I/edit?usp=sharing