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Attached to, found in or upon, or frequenting, woods or trees; as, arboreal animals. Woodpeckers are eminently arboreal. Darwin.

Like or belonging to the earliest forms of animal life.

The plan or fundamental structure on which a natural group of animals or plants or their systems of organs are assumed to have been constructed; as, the vertebrate archetype.

A genus of venomous ticks which attack men and animals. The famous Persian Argas, also called Miana bug, is A. Persicus; that of Central America, called talaje by the natives, is A. Talaje.

The fore limb of an animal, as of a bear.

Any edentate animal if the family Dasypidæ, peculiar to America. The body and head are incased in an armor composed of small bony plates. The armadillos burrow in the earth, seldom going abroad except at night. When attacked, they curl up into a ball, presenting the armor on all sides. Their flesh is good food. There a…

rn or used for the protection and defense of the body, esp. the protective outfit of some animals and plants.

The buttocks, or hind part of an animal; the posteriors; the fundament; the bottom.

Cunning; artifice; craft. Madam, I swear I use no art at all. Shak. Animals practice art when opposed to their superiors in strength. Crabb.

ual sense.] Artful in speech, in action, and in mind. Pope. The artful revenge of various animals. Darwin.

Jointed; formed with joints; consisting of segments united by joints; as, articulate animals or plants.

One of the divisions of the ungulate animals. The functional toes of the hind foot are even in number, and the third digit of each foot (corresponding to the middle finger in man) is asymmetrical and paired with the fourth digit, as in the hog, the sheep, and the ox; - - opposed to Perissodactyla.

lumbricoides, often occurring in the human intestine and allied species found in domestic animals; also commonly applied to the pinworm (Oxyuris), often troublesome to children and aged persons.

The act or process of sterilizing an animal or human being, as by vasectomy.

A small foxlike animal (Vulpes cama) of South Africa, valued for its fur.

te, as nourishment; as, food is assimilated and converted into organic tissue. Hence also animals and vegetables may assimilate their nourishment. Sir I. Newton. His mind had no power to assimilate the lessons. Merivale.

substance of the body, by the processes of digestion and absorption, whether in plants or animals. Not conversing the body, not repairing it by assimilation, but preserving it by ventilation. Sir T. Browne.

f organs, nerves, muscles, etc. The stomach, the most associable of all the organs of the animal body. Med. Rep.

A contraction of parts by applications; the action of an astringent substance on the animal economy. Dunglison.

The posture or position of a person or an animal, or the manner in which the parts of his body are disposed; position assumed or studied to serve a purpose; as, a threatening attitude; an attitude of entreaty.