The bootlace worm (Lineus longissimus) — the longest animal on Earth — produces a neurotoxin that can kill both crabs and cockroaches, a team of Swedish scientists has discovered. The bootlace worm (Lineus longissimus). Image credit: Cédric Audibert / AnimalBase Project Group, www.animalbase.uni-goettingen.de. The bootlace worm is a member of Nemertea, a phylum of invertebrate animals also known as ‘ribbon worms’ or ‘proboscis worms.’ The...