Something I don't know about behavior animals is when someone use a psychedelic he is usually more sensitive and receptive, more observative too. This might be a a reasonn when one might think the animals behave weird. However saying that I've notive on my first salvia launch the pet rat running to me as soon as it start like if somtihng was going on. They probably know they are some changes, like their owner is stoned or drunk, they probably feel you. But as a psychonaught you probably pay more attention to animals and vegetals too.