Many mammals, specially living in forest areas, have become modified to live on trees. Their mode of living is named as arboreal. Arboreal mammals are able to climb the trees and use their branches as the highways. There are three possible modes of aerial locomotion or flight-gliding, soaring and flapping. Gliding is the rudimentary flight displayed by certain fishes (Exocoetus), [...]
In this article we will discuss about the dentition in mammals with the help of a suitable diagram. Teeth and Dentition: The hard and usually pointed structures connected to the jaw bones in the buccal cavity of vertebrates are known as teeth. The structure, kind, number and arrangement of teeth are collectively called dentition. Although teeth are found among fishes, [...]
Structure of teeth is similar in all the vertebrates. A typical mammalian tooth is differentiated into 3 parts- crown, neck and root. Crown is the visible part of the tooth projecting out from the gum and out of the jaw bone. Root is the basal part, embedded in a socket or alveolus of the jaw bone. The junction of crown [...]