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.
When you have finished this page, try the Insects Quiz: Insects are part of a bigger animal group called arthropods. The word Arthropod literally means jointed limbs. The arthropods are the first animal group to have jointed legs.Insects have certain characteristics. They have six legs. They have three body parts, a head, a thorax and an abdomen. They have wings. They are by far the largest animal group. They also have an outer or exoskeleton made of a substance called chitin..nsects are part of a bigger animal group called arthropods. The word Arthropod literally means jointed limbs. The arthropods are the first animal group to have jointed legs.