Correction, Jan. 2, 2014: The caption for this story originally stated that Arwen and Aragorn are half-elf and half-human. Aragorn is three-fourths human and one-fourth elf. Arwen is 3/16 human, 25/32 elf, and 1/32 Maia. Thanks to reader Auros Harman for the genealogical analysis.

http://www.slate.com/articles/health_and_science/science/2013/12/are_hobbits_human_can_elves_and_humans_and_dwarves_interbreed.html

Don't you hate it when reputable news sources don't do their research?