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.
Squirrels (including pineys) shake their tails to emphasize the sounds they produce. Tail-shaking--as barking--is a manner of scolding intruders and warning other squirrels of the intruders.When a fox squirrel is in doubt about something it sees or hears it tends to vent its ire by barking and shaking its tail.ncidentally, fox and gray squirrels flip their tails up and down when they are curious or angry with an intruder. Piney squirrels flip their tails up and down, but when they want to really vent their ire they may flip their tails from side to side or in a 365 degree circle. more.