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- When Knowledge and Ethics Collide
- Stem Cell Research — Potential Solutions, Practical Challenges
- Medical Technology — The Genetic Forefront
- Drug-Resistant Bacteria — A Global Health Issue
- Global Warming — Changing the Planet
- Pandemics — Is the Next One on the Way?
- Genetically Modified Foods — Do Potential Problems Outweigh Benefits?
- The Loss of Biodiversity
- Brain Science — We Are Wired to Learn!
The non-native tamarisk tree may actually be a benefit to the ecosystems it invades. (Credit: James Steinberg / Photo Researchers, Inc.)
January 9, 2012Reconsidering The Value of Non-Native Species
Invasive species don’t get much love. Most often, they are portrayed as the “bad guy” in ecosystems, where their misdeeds include outcompeting native species, spreading disease, and damaging agricultural crops. However, some scientists argue that this characterization is not as black-and-white as many in the scientific community once believed it to be.
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An ostrich can reach running speeds of 72 kilometers per hour, making it the fastest moving land bird in the world.
Strange Biology
A Killer Snail
The cone snail is one of the slowest-moving carnivorous snails. But what it lacks in speed, it makes up for in potency of venom. In fact, a sting from the geographic cone snail, for which no antivenin exists, has resulted in several human deaths. However, research indicates that these same toxins may have positive implications for human health.
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