What is Feline Spraying. Feline Spraying (also called marking) is a cat depositing a small amount of urine on vertical surfaces, such as furniture, doorways and walls. The spraying cat may be seen to back into the area, the tail may quiver, and with little or no crouching the cat sprays the urine.hat is Feline Spraying. Feline Spraying (also called marking) is a cat depositing a small amount of urine on vertical surfaces, such as furniture, doorways and walls. The spraying cat may be seen to back into the area, the tail may quiver, and with little or no crouching the cat sprays the urine.
An arthropod (from Greek arthro- , joint + podos, foot) is an invertebrate animal having an exoskeleton (external skeleton), a segmented body, and jointed appendages. Arthropods form the phylum Arthropoda, and include the insects, arachnids, myriapods, and crustaceans. Myriapods comprise millipedes, centipedes, and their relatives and have many body segments, each bearing one or two pairs of legs. 2  They are sometimes grouped with the hexapods. 3  Crustaceans are primarily aquatic (a notable exception being woodlice) and are characterised by having biramous appendages.
Arthropods. Arthropods are invertebrate animals that have an external, jointed skeleton usually known as a carapace. The phylum includes insects, crustaceans, centipedes, millipedes, spiders, scorpions and horseshoe crabs.rthropods are invertebrate animals that have an external, jointed skeleton usually known as a carapace.