A Moment of Science
Unlike their ancestors, current birds of Britain aren't flying south for the winter. How are they surviving the colder months?
In evolutionary terms, a "successful" organism is one that passes on its genes -- not necessarily one that lives a long life.
Female aphids don't need males to reproduce. Their trick is called "parthenogenesis" and means big savings in time and energy.
Chemotherapy works well for some people or cancers, but not as well for others.
Unfortunately, evolution often detours along a crooked path until species become more "fit" for their environments.
Isn't it amazing that dog breeds like the Chihuahua and the Great Dane can vary so much in size, yet be the same species?
There is one gene that protects grains against a deadly fungus that could destroy entire crops. Learn more on this Moment of Science.
The flowers of Rafflesias are the largest in the world. But the rest of the plant is minuscule and has no leaves, roots or stems.
Domesticated cats tend to show much less variety. A Siamese and a tabby are both shaped like, well, cats. While there are many different breeds of dogs.
In 2001 a shark was born at a zoo in Nebraska. The birth might not have been newsworthy, except that baby appeared in a tank with three female sharks.
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