Both lines are now extinct in the male line.

Adapiformes is an extinct group of early primates.

Gothic is an extinct Germanic language that was spoken by the Goths.

Creodonta is an extinct order of mammals that lived from the Paleocene to the Miocene epochs.

From left to right, we've got Homo erectus, Homo habilis, and Australopithecus now called Paranthropus boisei, the robust australopithecine. Three extinct species, same place, same time.

And they see reviving extinct species as the kind of good news you might be able to build on.

There are 6 mammal species in Bahrain, of which 0 are critically endangered, 0 are endangered, 2 are vulnerable, and 0 are near threatened.

Nearly all animal and plant species that have lived on Earth are now extinct, and extinction appears to be the ultimate fate of all species.

There's three of them who are not just re creating ancient species, they're recreating extinct ecosystems in northern Siberia, in the Netherlands, and in Hawaii.

It is thought that in the early days of its existence as a species, the California condor lived off the carcasses of the megafauna , which are now extinct in North America.

The order has 33 extant families, 413 genera, and over 13000 described species, along with five extinct genera known only from the fossil record.

The insect order Zoraptera contains a single family, the Zorotypidae, which in turn contains one extant genus with 39 species, Zorotypus as well as 9 extinct species.

Present day extinction rates are 100 1000 times greater than the background rate and up to 30 of current species may be extinct by the mid 21st century.

Studies indicate that in areas where large predators (tigers and leopards) are extinct, wild pigs are over 10 times more numerous than in areas where tigers and leopards are still present.

They're the second largest fish in the world, they're almost extinct, and we know almost nothing about them. At TEDxDublin, Simon Berrow describes the fascinating basking shark , and the exceptional and wonderfully low tech ways he's learning enough to save them.

Furthermore, increasingly sophisticated DNA studies of extinct populations have shown that, despite their general classification as the distinct species Homo neanderthalensis, Neanderthals interbred with modern human groups as they dispersed out of Africa.

Does this then mean that there is after all some absolute difference between people outside Africa and inside Africa in that people outside Africa have this old component in their genome from these extinct forms of humans, whereas Africans do not?

The fossil record indicates that the blue iguana was abundant before European colonization but fewer than 15 animals remained in the wild by 2003, and this wild population was predicted to become extinct within the first decade of the 21st century.