Complex sentence: The best contender for unipedal movement is the springtail, which while typically hexapedal, hurls itself away from danger using its furcula, a tail-like forked rod that can be rapidly unfurled from the underside of its body.
Split into simpler sentences: The best contender for unipedal movement is the springtail, which has six legs and is typically hexapedal. However it hurls itself away from danger using its furcula, a tail-like forked rod that can be rapidly unfurled from the underside of its body.