Oh, boy. This used to be a simple answer. When the very first YouTubers started making money, it was predominantly through electing to run ads on their channels' videos (which you can still do today), but also through selling merchandise. Creators would link to their branded t-shirts, stickers, buttons...
These behavior changes often become annoying to owners, and sometimes owners think their cat has some unusual illness. Some female cats will urinate more frequently or may even spray urine on vertical objects (marking) when they are in heat.The urine contains both pheromones and hormones, both of which act as signals of her reproductive status to other cats. This is the reason that queens in heat attract intact male cats.hese behavior changes often become annoying to owners, and sometimes owners think their cat has some unusual illness. Some female cats will urinate more frequently or may even spray urine on vertical objects (marking) when they are in heat.
Both males and female cats do it at other times as well. Both will flehmen when they encounter urine from other cats, such as that sprayed on your new drapes, or urine puddles on the floor or in the litter box. Some cats do it when sniffing catnip, our cat Buffett used to do it when playing with catnip toys.