In evolutionary terms, a "successful" organism is one that passes on its genes -- not necessarily one that lives a long life.
How are we related to trees? Can we be considered relatives?
Photosynthesis is the biochemical process in which energy from sunlight is converted by plants, algae, and some bacteria into sugars, which are used by the organism as food. That is, these organisms convert the energy of the sun into a different form of energy. However, there is a least one exception: a little bacterium deep under the Pacific Ocean which manages photosynthesis without sunlight. Learn more on this Moment of Science.
You might remember seeing single-cell organisms under a microscope in biology class, and perhaps you remember them as rather boring blobs. Life got much more interesting and complex when the cells joined together to become animals or plants. Most people, biologists as well as you and I, think of cells primarily as building blocks of more complicated organisms. Learn more on this Moment of Science.
Is animal cloning for real? Find out on this Moment of Science.
Did you know that caterpillars are territorial? Learn about the "Tapping Caterpillars" on this Moment of Science.
A global nuclear war--heaven forbid--would end the life of most everything on the planet. But this organism would live on.
What do worms and old people have in common? Find out on this Moment of Science.
While in the tube, the worm’s tail end might be immersed in temperatures as hot as 178 degrees Fahrenheit, while its head rests in cooler water, as moderate as 72 degrees Fahrenheit.
Today’s Moment of Science unravels the parts of metabolism. But first, what is metabolism really? Statements like “he can eat a lot because he has a fast metabolism” are somewhat misleading. Metabolism isn’t about the digestion of food in your stomach; it’s the name given to all of the chemical changes that occur in an [...]