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Free educator resources are available for this article. Register to access: Client key* E-mail Address* Already Registered? Enter your e-mail address above. When you think a person is old, just how old are they? Does 50 seem old? What about 75? Or 100? That may be old for a human being. But for a glass sponge, turning 100 would be like a person reaching their first half-birthday. Compared to many animals, people do live a long time.
First, the bad news: Scientists are probably never going to resurrect authentic mammoths from bones or mummified remains. Genetic material just doesn’t survive intact for thousands of years in the Siberian permafrost. The bits and pieces of DNA that do linger in fossils aren’t enough to create a clone. That makes the title of How to Clone a Mammoth somewhat misleading. But evolutionary biologist Beth Shapiro keeps hope alive for making a mammoth — or at least something very much like one.
Even supposedly mute cicadas have a way to make themselves heard. Male Karenia cicadas lack the specialized body parts that other cicada species use to make their characteristic buzzing calls, prompting entomologists to declare them mute. But that doesn’t stop the insects from making music, and researchers have finally uncovered their unique set of instruments. Whereas other cicadas vibrate or scrape their specialized organs to make noise, K.
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