These "Others", gathered here, constitute more than 85% of the animal kingdom.
One finds there for example insects, spiders, frogs (very represented on the coats of arms of many nations); butterflies widely figured from ancient Egypt, many times crunched by naturalists and subjects of an important theme in philately, starfish whose shapes and colors have inspired many artists through the ages...
Amphibians, form a class of tetrapod vertebrates comprising around 7,000 species (toads, frogs, salamanders...). Arthropods, made up of more than a million and a half species, are animals whose external skeleton, or exoskeleton, is articulated (arachnids, crustaceans, insects, myriapods...). Molluscs, or mollusks, form a very diverse group of animals divided into more than 70,000 species (bivalves, gastropods, cephalopods...).
Amphibians are ectothermic, tetrapod vertebrates of the class amphibia.
Crustaceans (five to seven pairs of legs), chelicerates including arachnids (four pairs of legs), insects (3 pairs of legs), myriapods (millipedes, centipedes...).
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Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda. The members are known as Molluscs or Mollusks
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