"Book ornamentation" is not a recognized medical term, and it does not have a specific medical definition; it generally refers to the decorative elements added to books as part of bookmaking and binding artistry, which has no direct relation to medicine.

A book is not a medical term, but generally refers to a set of printed or written sheets of paper bound together that can contain a wide range of information including literature, research, educational content, and more, which may be utilized in the medical field for various purposes such as learning, reference, or patient education.

Coloration or discoloration of a part by a pigment.

The selection or choice of sexual partner in animals. Often this reproductive preference is based on traits in the potential mate, such as coloration, size, or behavioral boldness. If the chosen ones are genetically different from the rejected ones, then NATURAL SELECTION is occurring.

Fleshy and reddish outgrowth of skin tissue found on top of the head, attached to the sides of the head, and hanging from the mandible of birds such as turkeys and chickens.

Sexual activities of animals.

I'm sorry for any confusion, but "Book Selection" is not a term with a recognized medical definition in the field of healthcare or medicine. It might be related to literature or library science, where it refers to the process of choosing books for a collection based on various criteria such as relevance, quality, and diversity.

A genus of livebearing cyprinodont fish comprising the guppy and molly. Some species are virtually all female and depend on sperm from other species to stimulate egg development. Poecilia is used in carcinogenicity studies as well as neurologic and physiologic research.

Communication between animals involving the giving off by one individual of some chemical or physical signal, that, on being received by another, influences its behavior.