How to animate two animation clips at the same time?

Hi. I am pretty new in Unity and is a pretty inexperience scripter. I have been trying to read up threads that talks about how to play 2 animation clip at the same time. I got an idea of the Crossfade and the AnimationBlend are two of the ways to do it. I guess the people talking about them are pretty knowledgeable in scripting language. I got so confused with the string and float and weights. May I simply ask how to write a script that play an animation clip(an object squid with tentacles moving, animated in maya) and another animation clip (the squid moving away, animated in Unity) at the same time? I animated them separately because I also have a box collider and a particle system (ink) with the object squid, and they are not moving with the squid. So I made another Unity animation (the squid moving away) so that they all stick together.

Thank You!