loss of habitat

Bringing Back Departed Species: Is De-Extinction a Good Idea?

Candice Gaukel Andrews by Candice Gaukel Andrews | April 19th, 2013 | 1 Comment
topic: Eco Travel, Green Living | tags: Arabian Oryx Sanctuary, burcado, Chinese river dolphins, climate change, clone, cloning, de-extinction, dinosaurs, DNA, Eco Travel, environment, ethics, extinct, extinction, frogs, gastric brooding frog, genetics, habitat, habitat destruction, harm to wildlife, Jurassic Park, loss of habitat, natural habitats, nature, oryx, passsenger pigeon, poaching, Pyrenean ibex, reintroduction of wildlife, science, species extinction, Tasmanian tiger, technology, wildlife poaching, woolly mammoth

Frog on a leaf

The image of the woolly mammoth, saber-toothed cat and dodo bird stepping out of a beaker on the cover of National Geographic’s April issue says it all. Science has found a way to bring back some long-extinct species — or at least, facsimiles of them.

In truth, the goat-like bucardo, or Pyrenean ibex, is the only extinct animal scientists have actually revived. In 2003, biologists managed to clone an offspring from frozen skin cells from the last survivor, which died in 2000. The clone, however, lived for only a few minutes after its birth. Since then, advances in cloning technology have made it possible to bring back any species if there is a remnant of DNA.

But with so many habitat pressures on the wild species that are already here and with so many on the brink of extinction, is bringing back those we’ve already lost a good idea?

Is Another Mass Extinction Imminent?

Candice Gaukel Andrews by Candice Gaukel Andrews | September 27th, 2012 | 2 Comments
topic: Green Living | tags: Anthony Barnosky, biodiversity, birds, climate change, conservation, conservation efforts, die-off, Eco Travel, endangered, endangered animals, endangered-species, environment, extinction, frogs, global-warming, habitat fragmentation, International Union for Conservation of Nature, invasive species, IUCN Red List, loss of habitat, nature, science, scientists, species extinction, Tigers, travel

Pronghorn in Yellowstone National Park

We could be on the brink of a mass extinction — the Earth’s sixth — according to a paper published last year in the journal Nature. First author Anthony Barnosky, an integrative biologist at the University of California at Berkeley, says Earth has experienced five mass extinctions during the past 540 million years, and another extinction could be around the corner. During each of the five previous events, three-quarters or more of the world’s animal species died out. One of the mass extinctions — which occurred 65 million years ago — ended the dinosaurs.

Some say, however, that this isn’t much cause for alarm. Species have always come and gone over long periods of time; and given the five mass extinctions we’ve already had, it’s a natural event. But will this sixth one be a “different animal”?