Arthropods (phylum Arthropoda) (from Greek ἀρθρον, meaning joint and πούς/ποδός, meaning foot) are the largest phylum of animals and include the insects, arachnids, crustaceans, and others. Approximately eighty percent of extant animal species are arthropods, with over a million modern species described and a fossil record reaching back to the early Cambrian. Arthropods are common throughout marine, freshwater, terrestrial, and even aerial environments, as well as including various symbiotic and parasitic forms. They range in size from microscopic plankton (~0.25 mm) up to forms several metres long.
Arthropods are characterised by the possession of a segmented body with appendages on each segment. They have a dorsal heart and a ventral nervous system. All arthropods are covered by a hard exoskeleton that is made out of chitin, a polysaccharide. Periodically, an arthropod sheds this covering when it moults. This covering makes arthropods less prone to dehydration.
Arthropods :: Bites and Stings
Scorpions :: Invertebrates
Worms :: Invertebrates
Arthropoda :: Animalia
Arthropods :: Biology

Arachnopets - Tarantula, scorpion and centipede info. Classifieds, caresheets, dealer reviews, forums, galleries and chat.
Meta Description: [ The one stop shop for Tarantula, Scorpion and Centipede info. Classifieds, Caresheets, Dealer Reviews, Bite Reports, Forums, Galleries and Chat. ]
Bug Pets - Caresheets for stick insects, praying mantids, cockroaches, tarantulas, crickets, rearing caterpillars and scorpions and information on fireflies.
Emperor Scorpions - How to keep them successfully: housing, feeding, molting and maintenance.
Giant Spiders - Care information, articles and image gallery for tarantulas and other spiders.
Meta Description: [ The captive care of the worlds largest species of spider - the tarantula. ]
Invertebrates Make Great Pets - Offers care sheets about keeping insects and arthropods and information about clubs and societies for insects, arachnids and for other arthropods.
Meta Description: [ The Wonderful World of Insects, introducing the insect in all its amazing variety, with links to the many more detailed pages that make up this site. ]
Lovable Lobsters - Information about pet lobsters: biology, links, pictures, FAQ and care tips.
Petbugs.com - Invertebrates in captivity: caresheets, resources, and a discussion forum for arachnids, beetles, stick and leaf insects, and other insects.
Meta Description: [ Your connection to the world of invertebrates in captivity! ]
Phong's Tarantulas - Information about his collection of dozens of tarantulas, true spiders, centipedes and insects, including photographs, molting records, breeding, and care information.
Meta Description: [ Information about my collection of
tarantulas, true spiders, centipedes and other creepy crawlies, including
detailed molting records, breeding, care information and more. ]
Rainbow Crabs - Tank setup, feeding, FAQ and online stores.
Simmi's Critters - Personal page about the owner's tarantulas, scorpions and insects.
Meta Description: [ Simmis Welt besteht aus Katzen, Krabbelviechern, Ratbikes u. v. m. ]
Spiders Calgary - Arachnid information site of Stanley and Marguerite Schultz, authors of The Tarantula Keepers Guide. Contains history, comprehensive index, addenda and errata and peripheral information for both editions of their book.
The Pet Arthropod Page - Site details the breeding and raising of large arthropods as pets with a picture of a hissing cockroach.
Troll Quality Tarantulas and Scorpions - Care information, pictures and articles for arachnids. Includes American Tarantula Society list of common and scientific names.
| Red-Bellied Woodpecker Feeding #2 | |
| Next Video | |