Marijuana, the most often used illegal drug in this country, is a product of the hemp plant, Cannabis sativa. The main active chemical in marijuana, also present in other forms of cannabis, is THC (delta-9-tetrahydrocannabinol). Of the roughly 400 chemicals found in the cannabis plant, THC affects the brain the most.
Cats 'vibrate' when marking territory-spayed cats can also 'dry' spray. Spayed male cats urine doesn't smell. They swish their tales as a sign of annoyance or anger. If the tip of the tail 'trembles', it's quite often a sign of being 'unsure' about something. Source(s): Cat owner.
What does it mean when your cat waves its tail? Wouldnât it be great if you could talk to your cat and know what it was feeling? Well, by reading simple body language you can! By taking note of what the tail ears and fur on your cat is doing you can see how he or she is feeling, writes Gordon Bloomfield.