Mine come and go, I sometimes have breaks that last a few months-over a year, then some new piece of information or film/tv show that will rekindle the flame.
A few months ago I'd left the Asian and American food culture interest behind as I'd ran out of recipes to read and everything was just repeats. Then there was all this promo stuff released about Dawn of the Planet Of The Apes and that sent me plummeting back into the great apes obsession. That seems to be lasting the longest for me apart from mermaids which has waxed and waned since I was little, the apes have been making an appearance since I was 16. Often, when a rebound special interest has worn out, the apes one always feels like a welcome reunion. Like mermaids it feels like it's my true calling almost, I feel the most motivation, inspiration and productivity from this particular passion.
I've got a volunteer job at Twycross Zoo hopefully by November, I've been going to Chester and Twycross zoo every couple of weeks which gets me out the house, doing lots of drawing and poetry which I hadn't done for years (my past interest in furries has come back too, so I've been drawing little comics about bonobo characters.)
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What film do atheists watch on Christmas?
Coincidence on 34th street.