Firefly larvae look nothing like their future adult selves. In the life cycle of fireflies, the larvae stage is the period when the insects are most brutal. They are horrifying predators that even spiders and millipedes don't want to come across. In this episode, we explore the dark side of the glowing fireflies.

Watch more:

Fireflies episode 4：The secret of light

Fireflies episode 3: The hunting world

Fireflies episode 2: The master of disguise

Fireflies episode 1: The hostile forest for the fireflies

(Cover image designed by CGTN's Li Yueyun)

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