See the blooming of a dahlia bud
Time-lapse video, filmed over four days, of the flowering of a dahlia (Dahlia species) bud.
Video by Neil Bromhall; music, Orchestra Gli Armonici/Musopen.org (A Britannica Publishing Partner)
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Encyclopædia Britannica, Inc.The average tornado has a short lifespan—but large potential for destruction.
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Encyclopædia Britannica, Inc.Love can be a dangerous game.
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Encyclopædia Britannica, Inc.From teeny-tiny ants to 200-ton whales, all members of the animal kingdom are composed of cells.
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Encyclopædia Britannica, Inc.Plants can reproduce asexually in a variety of ways. Learn about bulb, gemma, plantlet, and cutting forms of asexual plant reproduction.
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Encyclopædia Britannica, Inc.Components of the plant vascular system.
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Encyclopædia Britannica, Inc.Plants, ranging from the simple liverwort (a bryophyte) to the flowering plants (angiosperms), have evolved structures enabling them to colonize the land of almost any habitat.
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Encyclopædia Britannica, Inc.Gymnosperms dominated the plant world until they were replaced by the more advanced flowering plants known as angiosperms.
