Rising 51 and 58 spots, Penelope and Thor are definitely on the move. The reason for Penelope's recent surge in popularity could have something to do with Kourtney Kardashian's daughter of the same name, and as far as Thor goes, it seems likely we can thank the 2011 and 2013 blockbusters "Thor" and "Thor: The Dark World."
Thor actually lost a bit of momentum this year, however, going from the No. 3 trendiest name to No. 4. Penelope didn't make the cut last year. Penelope and Thor both found a home on this year's most popular kitten names list, ranking No. 48 and No. 40.
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