So I am planning to make an animal robot and I have been researching how to build them. I found some videos that have lego techniques I would use on my mindstorm ev3 in the future.

https://www.youtube.com/watch?v=vMwPTGMM1Zs
https://www.youtube.com/watch?v=m9zgrds_RhA
https://www.youtube.com/watch?v=l4UmHdaUdXw
https://www.youtube.com/watch?v=qE7NXtwk0Q4