Multiples tbh, and entirely depends on the mutation.
Generally they're : (pros and cons)
- sens development
- colorblindness
- amplified surrounding awareness
- reduced ability to socialize with Homo Sapiens (vocal communication, expression communication, society mindset)
- amplified force and agility
- unstabke bone structure (only for prototypes)
- a sense of peace for some, that sometimes pushes passivity and contemplation.