[i would give links to all this stuff, but i closed most of them already. this is a good place to start, just beware that they're fairly indiscriminent about sources, having stories from weekly world news next to cnn]
two articles i will call attention to, however:
mysterious chunks of flesh have been clogging up water lines in iowa
a greek plane crashed last year, with everyone on board not only dead but frozen solid prior to impact
so basically, the world is full of weird shit we don't understand that might kill us. on the plus side, we may have finally figured out trigonometry.