2023年1月16日 · From an Australian frog that swallowed its own eggs to woolly mammoths, scientists are getting ever closer to being able to bring long-lost species back from the dead. Millions of years ago...

2016年9月26日 · A second option is cloning. Scientists would take a preserved cell from a recently extinct animal (ideally before the last of its kind died) and extract the nucleus. They would then swap this nucleus into an egg cell from the animal's closest living relative and implant the egg into a surrogate host.

De-extinction, or resurrection biology, reverses plant and animal extinctions by creating new versions of previously lost species. Back-breeding, cloning, and genome editing are species restoration methods. The goal is to re-establish dynamic processes that produce healthy ecosystems and restore biodiversity.

2023年4月26日 · On January 6, 2000, the bucardo (also known as the Pyrenean ibex, a subspecies of wild mountain goat) was confirmed extinct — for the first time, at least. Conservationists mourned when Celia,...

2025年1月22日 · By leveraging preserved DNA, de-extinction may pave the way to revive lost species such as the woolly mammoth and passenger pigeon. This article delves into the complexities of the de-extinction process, examining the intersection of …

2025年1月23日 · Reintroducing extinct species could disrupt current ecosystems and create competition with existing wildlife. Concerns also arise about the welfare of cloned animals and the prioritization of technological solutions over addressing the root causes of biodiversity loss.

2009年2月10日 · An extinct animal has been resurrected by cloning for the first time—though the clone died minutes after birth.

Somatic cell nuclear transfer (SCNT) is one way of cloning an animal. It requires intact cells from an extinct species. First, scientists remove the nucleus from an egg cell of a closely related still-living species. Then they replace it with the nucleus from the cell of the extinct species.

2013年3月11日 · Scientists propose genetic experiments to restore extinct species such as passenger pigeons, aurochs, and thylacines.

2012年2月29日 · Scientists are preparing ambitious plans to resurrect long-dead animals from passenger pigeons to woolly mammoths. But can they succeed? A century ago, vast flocks of passenger pigeons covered...