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The film shows the prey-catching behaviour of the edible frog at a small garden pond and at a gravelpit. The catching of creeping and (under experimental conditions) hanging earthworms, of flies sitting on the surface of the water and of egglaying dragonflies (Sympetrum spec.) in tandem position are visible.
Выпуск: Jan 01, 1984
Время выполнения: 8 минут
Язык: Deutsch
Страна: Germany
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