The wasp and the preying mantis are two of the creatures that make up the arthropod phylum. All arthropods have jointed appendages, it makes them more flexible. Arthropods are segmented. Some of the more advanced species have segments fused together to form regions called the head, thorax, and abdomen. The bodies of arthropods are encased in a shell-like exoskeleton.
Many arthropods have compound eyes.
Air from the outside goes through the tracheae by going through the special openings called spiracles. The arthropod circulatory system is open, with a heart along the top of the body that squeezes blood out into internal body spaces. Terrestrial arthropods have an excretory system that conserves water and eliminates waste. Insects, the most abundant of the arthropods have wings. Not endangered animals, endangered arthropods.