Incubation, the act of providing proper physical conditions for the development of certain living organisms. The eggs of birds are incubated from the time the eggs are laid until they hatch. Most birds incubate their eggs naturally, by sitting on them in the nest to keep them warm and moist. Poultry farmers usually incubate eggs in large devices called incubators. The incubating period for eggs of chickens is about 21 days; of turkeys 28 to 30 days; of geese 30 to 35 days.
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Interest in dinosaurs soared to new heights in the 1990s, thanks largely to the blockbuster film Jurassic Park. So too did dinosaur discoveries. Since 1990, more than 100 new dinosaur genera have been described and named. Learn more about recent dinosaur discoveries.
An aquarium is a tank or container that is filled with water and stocked with aquatic organisms, especially fish; also an establishment in which these organisms are exhibited.