Migratory birds fly
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Each is familiar with seasonal migrations of animals. Of course, not everyone managed to see, for example, the course of pink salmon on the rivers of Kamchatka, the movement of huge herds of the northern deer in the tundra. But everyone has repeatedly watched migratory birds in spring and autumn.
Migrations are regular, annually repeated movements of a large number of animals from one place to another. Correct seasonal migrations are clearly visible phenomenon, and people knew about it since deep times. Aristotle 2000 years ago made a conclusion that bird migration depends on temperature changes.
For primary and secondary school age
Migrations are regular, annually repeated movements of a large number of animals from one place to another. Correct seasonal migrations are clearly visible phenomenon, and people knew about it since deep times. Aristotle 2000 years ago made a conclusion that bird migration depends on temperature changes.
For primary and secondary school age
Author:
Author:Babenko Vladimir
Cover:
Cover:Hard
Category:
- Category:Children's Book
- Category:Natural sciences
Series:
Series: Know the world
ISBN:
ISBN:9785001610359
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