Arthropods

Dancing Shrimp / Lars Hallström / age fotostock / Getty Images
Dancing Shrimp (Rhynchocinetes durbanensis), Indonesia. Lars Hallström / age fotostock / Getty Images

Arthropods are animals in the Phylum Arthropoda, a very diverse group of organisms that includes insects, crabs, lobsters, scorpions and centipedes.

Characteristics of Arthropods:

All arthropods have:

  • Jointed legs, making them quick-moving organisms
  • A segmented body
  • A hard exoskeleton made of a strong polysaccharide called chitin. This hard "shell" helps protect the animal and retains moisture.

Classification:

Habitat and Distribution:

Arthropods are found in habitats all over the world - dry land, fresh water, and salt water. In the ocean, they can live from coastal habitats like sandy beaches and intertidal areas all the way to the deep sea.

Reproduction:

Most arthropods reproduce sexually, through internal fertilization. In many arthropods, such as crabs, you can see eggs attached to the abdomen.

Marine Examples of Athropods:

Examples of marine arthropods:

 

Format
mla apa chicago
Your Citation
Kennedy, Jennifer. "Arthropods." ThoughtCo, Aug. 29, 2016, thoughtco.com/marine-arthropod-facts-2291818. Kennedy, Jennifer. (2016, August 29). Arthropods. Retrieved from https://www.thoughtco.com/marine-arthropod-facts-2291818 Kennedy, Jennifer. "Arthropods." ThoughtCo. https://www.thoughtco.com/marine-arthropod-facts-2291818 (accessed January 16, 2018).