11 Adaptive Features of Land Reptiles
The amphibians have never achieved emancipation from the water even though the major part of the adult life is spent on land. They still require…
Biology
How the Teeth of Mammals are Configured
In most mammals, the teeth are of different kinds, a condition described as heterodont in contrast with the homodont teeth of reptiles and amphibians. There…
Concise Description of the Functions of the Mammalian Skin
The skin provides protection from various hazards; it is an excretory organ; it subserves temperature regulation and sensitivity. Physical protection from damage is provided by…
Morphological Description and Features of a Dog Skull
The cranium of a dog’s skull is almost entirely composed of three rings of bones, the occipital, parietal and frontal rings. The occipital ring of…
Detailed Description of the Vertebral Column of a Rabbit
The vertebral column of a rabbit can be divided into distinct regions with types of vertebrae very characteristic of their particular region. In the neck…
Description of Adaptive Radiation in Birds
Adaptive Radiation: The oldest known birds are represented by two fossils found in Jurassic rocks, one of archaeopteryx and one of Archaeoronis. Since the evolution…