Seven totally safe science discussion topics for Thanksgiving dinner

So you don't have to talk about politics, religion, or your new tattoo
Ophiocordyceps fungus growing on moth
From Toxoplasma gondii to cordyceps fungi, nature is rife with bizarre and disturbing parasites. It might be best to save this one for when everyone is done eating, because these things are gross. These fungi, worms, protozoans, and other parasites can destroy their hosts' bodies and sometimes even control their minds. But unlike the fleas on your brother's girlfriend's dog (which she kind enough to share with everyone by bringing Fluffy over for dinner) we don't have to worry about most of these parasites bothering us. Andreas Kay via Flickr

This Thursday, many of us will gather with the people in our lives for whom we’re grateful. But as much as we may love each other, sometimes we don’t see eye-to-eye on politics, relationships, religion, gender, sexuality, fashion, money, dogs, or even the very nature of reality. So instead of arguing over how the government should spend tax dollars or whether your cousin has too many facial piercings, let’s talk about science. We’ve compiled a list of seven science topics from this year that (hopefully) won’t start an argument. (We make no guarantees, though, since we all know Aunt Linda is a world-class know-it-all.)

arrival trailer screenshot
Water Condenser
Sick Penguin
Macbook and dongles
Balloon-borne Large-Aperture Submillimeter Telescope
Total Recall Astronaut