We hear a lot about the importance of biodiversity these days--but just what is biodiversity and why is it so important? Find out on this Moment of Science.
Why do we age? Science didn't really start investigating that question until the 1960's.
Many organisms possess genes or traits that they do not express.
Why are there males and females? Why are there two sexes instead of three, or twelve, or one?
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.
Are there dead zones in the ocean? Find out on this Moment of Science.
Do you ever stop to think about how all living things are ultimately related? "Life Traces in Lava" on this Moment of Science.
Why aren't clones perfect copies? Find out on this Moment of Science.