Another Race Idea

Chimera. Basically a human with animal parts, or the ability to do things like an animal. Successful chimeras include humans that have been mixed with animals that share similar or the same DNA as humans, such as monkeys or dogs. Or possibly two animals mixed together.

what are their weaknesses? strengths? faults?

Weaknesses: Chimeras do not always turn out perfectly, and those that do will take a while to get used to their new bodies and their new abilities.
Strengths: After learning how to control their bodies as well as their new abilities, they can use the animal's abilities to an extent, like if you fused a human with a snake they would be more flexible and would be able to dislocate their limbs and set them back into place on a whim.
Faults: The humans could very well take on animal like qualities. For instance, if you mix a human with a dog, then the human is likely to become more loyal than most other humans once you have earned their trust. Or if you were to mix a human with a fox, the human would most likely be less loyal and would become more tricky.