Extinct

‘Extinct’ species found alive and kicking

Publication: MSNBC.com   Date: November 12, 2009   View Article

The Rabb’s fringe-limbed tree frog, shown here, is one of 17,291 species threatened with extinction, according to an assessment of 47,677 animals and plants by the International Union for Conservation of Nature. The frog is found only in the mountains surrounding the town of El Valle de Anton in central Panama. Deforestation and a fungal disease are blamed for its decline. Only one male has been heard calling in the wild since 2006, and captive breeding efforts have so far proven unsuccessful, according to the IUCN’s “Red List of Threatened Species.”

Many conservationists say an extinction crisis is under way, driven by factors that range from overfishing and forest clear-cutting to global climate change. Amid all this doom and gloom, however, a bit of fleeting good news appears every now and again, when a species thought gone for good surprisingly reappears.

Learn eight of these stories. The endings may not be happy, but at least their stories are not yet over.

Scientists Recreate Genome of Ancient Human Ancestor

Publication: National Geographic News   Date: January 25, 2005   View Article

Scientists have recreated part of the genetic code of an extinct, shrewlike creature that is thought to have been the most recent common ancestor of most placental mammals, including humans.

Placental mammals give birth to live young, and they descended from a common ancestor scientists simply call the “boreoeutherian ancestor.” The creature scurried about the woodlands of Asia more than 70 million years ago.

© 2008-2010 Collected Writings By John Roach