You’re not likely to witness a horsehair worm making its exit from a praying mantis, but if you do, it’s quite a sight. The spaghetti-like worm, under wet conditions, gradually wiggles out of its host ...

For a praying mantis, eating the wrong insect can be a one-way ticket to a watery grave. Some of its typical bug prey contain horsehair worms, Chordodes fukuii, which grow in a mantid's gut—and ...