Bird migration - Wikipedia, the free encyclopedia Bird migration is the regular seasonal journey undertaken by many species of birds. Bird movements include those made in response to changes in food availability, habitat, or ...
Migration - Wikipedia, the free encyclopedia Migration, Migratory behavior, or Migratory may refer. Gene migration, a process in evolution and population genetics; Animal migration, the travelling of long distances in ...
Human migration - Wikipedia, the free encyclopedia Human migration (derived from Latin: migratio) is physical movement by humans from one area to another, sometimes over long distances or in large groups.
Nomad - Wikipedia, the free encyclopedia Nomadic people (Greek: νομάδες, nomádes, "those who let pasture herds"), commonly known as itinerants in modern-day contexts, are communities of people who move from ...
Animal migration - Wikipedia, the free encyclopedia Animal migration is the relatively long-distance movement of individuals, usually on a seasonal basis. It is a ubiquitous phenomenon, found in all major animal groups ...
Fish migration - Wikipedia, the free encyclopedia Many types of fish migrate on a regular basis, on time scales ranging from daily to annually or longer, and over distances ranging from a few metres to thousands of kilometres.
Hijra (Islam) - Wikipedia, the free encyclopedia The Hijra (هِجْرَة) is the migration or journey of the Islamic prophet Muhammad and his followers from Mecca to Medina in 622 CE. Alternate spellings of this Arabic word ...
Migration Period - Wikipedia, the free encyclopedia The Migration Period, also known as the Barbarian Invasions (German: Völkerwanderung "migration of peoples"), was a period of intensified human migration in Europe from about ...
Lepidoptera migration - Wikipedia, the free encyclopedia Lepidoptera migration is a biological phenomenon whereby populations of butterflies or moths migrate over long distances to areas where they cannot settle for long periods of time.
Endoderm - Wikipedia, the free encyclopedia Endoderm is one of the three primary germ cell layers in the very early embryo. The other two layers are the ectoderm (outside layer) and mesoderm (middle layer), with the ...