To put it plainly....
Downright stupid.
The creature is based on Disney's Goofy...sure. 🙄
The idea is that these creatures have "evolved" from multiple animals combined, in order to adapt, after some "unknown" catastrophe takes place on earth. This movie was given life by this guy, (Brewer), who believes that humanity has destroyed the earth enough to not deserve to live on it anymore. His message is that humanity is a plague upon the earth, and that the earth and all wildlife would be better off if we all (humans) went extinct. This Brewer character is likely a climate crazed Californian. He is clearly off his rocker. Hey Brewer, if you believe that humanity is a plague upon the earth, feel free to take your leave. I hear Mars is great.
Or, you could just go live in Antarctica, in an ice cave. Never to return to civilization. Your movie is idiotic, and you are an imbecile.