Which was first, human or the air ?
Did you see how stupid it is and even the ones who may entertain such kind of fooling questions ?
The air by far, since evolution created the oxygen. Human's have only been on the Earth for a very short time period in Earth's history.
Pick the Pollinator
- By Rima Chaddha
- Posted 04.17.07
- NOVA
Flowering plants represent about one-sixth of all Earth's known living life-forms. How did these immobile organisms manage to spread so far? One answer is pollination, or plant sexual reproduction. Pollinators—typically wind, water, and animals—carry pollen from one flower to another. In this game, match seven plants with their pollinators and learn why flowering plants have come to dominate the botanical world.
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Test your knowledge of how insects, birds, and other pollinators help flowering plants flourish
Flowers Modern & Ancient
- By Susan K. Lewis
- Posted 04.17.07
- NOVA
Archaefructus liaoningensis would never have made the cover of Better Homes & Gardens. But this 125 million-year-old plant, discovered in fossil beds in northeastern China, did grace the cover of Science. It’s heralded as the earliest known angiosperm, or flowering plant. Here, explore what makes Archaefructus a flowering plant and how it compares to blooming beauties of today.
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How does a 125 million-year-old angiosperm measure up to a lily of today?
NOVA | Flowers Modern & Ancient
A Brief History of Life
- By Lexi Krock
- Posted 02.01.02
- NOVA
It's hard to wrap your mind around the concept of 4.5 billion years. For many of us, the Pyramids–built 4,500 years ago, a millionth of that time span–symbolize the distant past. The geological time scale helps us grapple with the vast swaths of time that life has existed on Earth, dividing it into eras, periods, and epochs. With our illustrated version, explore 4.5 billion years of life in just a few minutes.
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An overview of the history of life on Earth, from the earliest bacteria to the first modern humans