Parasitic worms bury themselves in the brains of moose and elk—a new diagnostic can prevent disease spread

A moose in Minnesota stumbles onto the road. She circles, confused and dazed, unable to orient herself or recognize the danger of an oncoming semitruck. What kills her is the impact of 13 tons of steel, but what causes her death is more complicated. Tunneling through her brain is a worm that doomed both of them to die.