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The jugal bone is located on either side of the skull in the circumorbital region. It is the origin of several masticatory muscles in the skull. [1] The jugal and lacrimal bones are the only two remaining from the ancestral circumorbital series: the prefrontal, postfrontal, postorbital, jugal, and lacrimal bones.
The squamosal is a skull bone found in most reptiles, amphibians, and birds. In fishes, it is also called the pterotic bone. [1] In most tetrapods, the squamosal and quadratojugal bones form the cheek series of the skull. [2] The bone forms an ancestral component of the dermal roof and is typically thin compared to other skull bones. [3]
The species can otherwise be identified by chromosome number and skull measurements. [5] Female Appalachian cottontails are typically larger than males, with reproductive needs being the most likely cause. The weight of the Appalachian Cottontail can range from as little as 756 grams (1.667 lb), up to as much as 1,153 grams (2.542 lb).
The base of skull, also known as the cranial base or the cranial floor, is the most inferior area of the skull. It is composed of the endocranium and the lower parts of the calvaria . Structure
The brow ridges are often not well expressed in human females, as pictured above in a female skull, and are most easily seen in profile. The brow ridge, or supraorbital ridge known as superciliary arch in medicine, is a bony ridge located above the eye sockets of all primates and some other animals.
Sporcle is a trivia and pub quiz website created by trivia enthusiast Matt Ramme. [1] First launched on April 23, 2007, the website allows users to play and make quizzes on a wide range of subjects, with the option of earning badges by completing challenges. Sporcle hosts over one million user-made quizzes that have been played over 5 billion ...
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The desert cottontail (Sylvilagus audubonii), also known as Audubon's cottontail, is a New World cottontail rabbit, and a member of the family Leporidae.Unlike the European rabbit (Oryctolagus cuniculus), they do not form social burrow systems, but compared with some other leporids, they are extremely tolerant of other individuals in their vicinity.