I Often I find that cats love to be around me while tripping, and they some how manage to fall asleep on top on my chest while I am laying down. They love to peer into my eyes as if they can see into my soul, and its comforting for them.
My cat loves to be around me when I'm tripping too. She will come up and lay on my side like she is part of me. She also like to sit on my chest and stare into me like this.
I'm surprised no one has mentioned a telepathic connection with their animals while tripping. I have telepathic moments with my cat every time she is around while tripping - only catch is I have to touch her head. If I am, I can read her thoughts and to some extent her memories (which seem very limited, at least to me). Its a very incredible sensation, its so instinctual.
I recently adopted a dog from a shelter (in July). I tripped the weekend after getting him, which in hindsight was a very bad idea. To compound things, it was the highest dose I had taken, and I was going to be home alone. The dog could tell there was something off about me and became standoffish, defensive, and just all around strange behaving. It might have been just because we hadn't really had sufficient time to bond. I finally got him to calm down a bit, and I laid down on my bed with him on the floor beside me. I started stroking his head, and was instantly telepathed with him. This scared the shit out of me. He is a pittbull rescue. All I could feel was aggression and the only memories were fighting and neglect.
Needless to say the trip went VERY downhill from there. I ended having to call my wife to come home so I could have someone to watch the dog while I rode out the remainder of the trip which did not improve. This is the only time I have been careless with drug use, and it scared the shit out of me. I haven't tripped since then, but next time I'm definitely going to have a sitter with me that will be able to watch out for me, my dose, and my dog.
As for my dog, we have since bonded very much. He loves me and I him. He has grown to trust me. He still can be dog-on-dog aggressive, which I don't think he will ever fully out grow. But he loves everyone he meets, especially new people. He is a fantastic dog, he loves to be trained and learn tricks (he is very smart!). It kills me to see all the bad press and anti-pitt dog laws that have been growing in popularity. Any dog is a product of it's owner. Treat your dog right, feed him well, exercise him, and love him, they will be the best animals. There are no bad dogs, just terrible owners.