Domain: Eukarya
Kingdom: Animalia
Phylum: Arthropoda
Class: Arachnida
Order: Araneae
Family: Theraphosidae
Genus: Brachypelma
Species: B. vagans

Domain: The Redrump Tarantula belongs to the domain Eukarya because it obtains a true nucleus, and membrane bound organelles. These same traits can be seen in many organisms we know even wasabi! Learn more about wasabi.

Kingdom: B. vagans fall under the kingdom Animalia because they are heterotrophic, multicellular, eukaryotic organisms that are motile during at least one stage of life. From the tiny deer tick to the massive blue whale many of the species you see everyday fall in this magnificant kingdom.

Phylum: B. vagans belong to the phyla Arthropoda because they have a chitinous exoskeleton, a segmented body, and jointed appendages. These are the organisms that make your mom shreek! Click here to learn about one of our other arthropod friends whose just jumping with joy to meet you!

Class: This tarantula belongs to the class Arachnida, which is actually belongs to the subphylum Chelicerata. These organisms typically have 8 legs, and 2 more pairs of appendages used for feeding, movement, and other sensory adaptations.

Order: B. vagans are part of the order Araneae, most commonly referred to as the spiders. Araneae have 2 tagmata (cephlothorax and abdomen), four pairs of legs, and no antennae.

Family: Redrump Tarantula’s are classified with the family Theraphosidae. These organisms, called tarantulas, are often very large and hairy. The most obvious synapomorphy for this family is the dominance of scopula on tarsus of legs. (cite)
Genus: Organisms belonging to this genus are the only tarantula genus that is completely protected, due to habitat destruction and pet-trade collection (cite). These tarantulas are native to Central America, including; Mexico, Costa Rica, Guatemala, and Panama. Furthermore, there are 21 tarantula species belonging to this genus, including B. vagans.

Species: B. vagans, or the Mexican Red Rump Tarantula, are known for their red coloured hair on their abdomen. They are commonly kept and bred in captivity, but are prevalent in Central American countries, along with many other species of tarantulas.

            Phylogenetic trees help visually describe relationships with other closely related organisms. The following trees will aide the relationship comparisons, as well as provide you with visual aide to better understand where this organism fits in the grand scheme of things.
            The first phylogenetic tree will illustrate a broader picture of the evolutionary relationships that Arthropods obtain.

The tree above illustrates the evolutionary relationship arthropods have with other animals belonging to the Phylum Animalia, and where they fall in the big picture of life. Beginning with the major clade that B. vagans belong to, Opisthokontan organisms all obtain a posterior flagellate in their reproductive cells, and a flat mitochondrian cristae. Moving on, B. vagans are part of the kingdom Animalia, which are all multicellular and motile at some point in life. Arthropods, which include insects, arachnids, and crustaceans, are most closely related to their fellow Protostomes. These organisms are all triploblastic, have bilateral symmetry, and more importantly develop their mouth before their anus during embryol development, and they molt. As noticed in the tree, Arthropods are most closely related to the Phyla Nematoda, and more distantly related to their fellow Prostomal relatives Mollusca, Annelida, and Platyminthes.
            The next phylogenetic tree exhibits a more specified illustration of the evolutionary relationships among the order Araneae.

Phylogenetic tree
Here, this tree shows the different relationships among spiders. As stated previously and shown on the tree, B. vagans belongs to the family Theraphosidae, which is located on the top-left corner of the tree. These spiders, often called Tarantulas, are most closely related to the family Ctenizidae.  Each family has distinct features that separate them from other spiders. Tarantulas are typically hairy and large, but also have scopula on the tarsus of their legs.

Now that you are well informed about the Classification of B. vagans, click here to learn more about the habitat this spider obtains.