Zoology Courses in Dehradun

Connecting Link – Archaeopteryx Archaeopteryx, the oldest-known fossil animal that is generally accepted as a bird. The eight or so known specimens date to approximately 150 million years ago during the Late Jurassic Period (161 million to 146 million years ago), and all were found in the Solnhofen Limestone Formation in Bavaria, Germany, starting in […]

Wing Coupling mechanism in Insect In several insect wings coupling mechanism seems. The fore and hind wings of either side are coupled with each other as a single unit. In primitive Pterygota fore and hind pair of wings moved independently of each other e.g. Isoptera and Odonata. Higher pterygotes have attained virtual dipterous by coordinated

Festivals Celebration should be for internal peace or should be for Environmental Degradation? Festivals are an integral part of rich and diverse cultural heritage of our country. There are many types of festivals in the India. Though many have religious origins, others involve seasonal change or have some cultural significance. In every months many festival

Communication in bees by waggle dance Domestic honey bee, Apis mellifera is a colonial insect living in hives containing one queen a fertile female ,a few drones (males) and thousands of workers (infertile females). Some 5–25% of the workers in the hive are scouts. Their job is to search for new sources of food for

Importance of Fish Migration Many types of fish undertake migrations on a regular basis, on time scales ranging from daily to annual, and with distances ranging from a few meters to thousands of kilometers. The purpose usually relates to either feeding or breeding; in some cases the reason for migration is still unknown. Factors Influencing

Regulation of gene expression in developmental process Gene expression is a complex, regulated process that begins with DNA duplication, DNA transcription in which DNA transcribed into RNA, which is then translated into protein. Each somatic cell in the body generally contains the same DNA. A few exceptions include red blood cells, which contain no DNA

Migration in Birds Bird migration refers to the seasonal journeys to and from a given area undertaken by all or part of a bird population. Not all bird species (or even populations within the same species) are migratory. In contrast to more irregular movements such as emigration, nomadism, and invasion, which are made in response

Post traumatic stress disorder effect on the body Post traumatic stress is a disorder that develops in some people who have experienced a scary or dangerous event. Traumatic situation build Feel of afraid during and after this situation. There are second of changes in the body to help defend against this danger. The hormone gives

Faunal diversity of Sunderban Delta                  The Sundarbans is a vast forest in the coastal region of the Bay of Bengal which is one of the natural wonders of the world. Located in the delta region of Padma, Meghna and Brahmaputra river basins, this unique forest area extends

Impacts of touristic activities on environment with special reference to Uttarakhand Tourism is one of the biggest and fastest growing sectors in the global economy and has significant environmental, cultural, social and economic effects, both positive and negative. Tourism can be a major tool for economic development but, if not properly planned it can have