I think it is possible. I also think "man" in all of his intellect is arrogant thinking only "he" is able to think, plan, use tools, communicate etc. Time and time again while we observe the natural world we see animals who plan the hunt and work in teams, we see animals using tools - not something they just pick up, but something they pick up and fashion it to meet the needs of the job to get done. We see animals communicate with each other using different sounds, and or body language.
Just because "man" doesn't understand something doesn't mean it doesn't exist