Lonesome George is not alone among Galpagos tortoises
... of Santa Cruz, where he is housed with two female tortoises from a species found on the neighboring island of ...early a first-generation hybrid between the native tortoises from the islands of Isabela and Pinta. That is, this tortoise has half his genes in common with Lone...Famous Galpagos tortoise, Lonesome George, may not be alone
...early a first generation hybrid between the native tortoises from the islands of Isabela and Pinta. That means,...d of Santa Cruz where he is housed with two female tortoises from a species found on the neighboring island of Isabela. "Even after 35 years, Lonesome George s...A plan for reintroducing megafauna to North America
...cesses back to ecosystems." Starting with giant tortoises and wild horses, then moving toward lions and elephants, the authors provide a number of case studies for "Pleistocene Rewilding" and argue such introductions would contribute biological, economic, and cultural benefits to North America. The authors ...Islands spark accelerated evolution
...tal counterparts while large animals shrink. Giant tortoises and iguanas still inhabit the Galpagos and a few other remote islands today, but only fossils remain of the dwarf hippopotami, elephants, and deer that once lived on islands in Indonesia, the Mediterranean, and the Pacific Ocean. The fossil record su...Whether in mice or men, all cells age the same, Stanford study finds
...y. That theory has left open questions about why tortoises and rockfish are still partying like 20-somethings...slow their protein production and why? And why, if tortoises can live hundreds of years, do flies self-destruct in a matter of weeks? Kim thinks there must be ...11th International Deep-Sea Biology Symposium
...pecies often evolve into giants such as the giant tortoises of the Galapagos while large-bodied species often become tiny. Many deep-sea species are smaller than their shallow-water relatives, but there are also monsters in the depths such as the giant and colossal squid. McClain and his colleagues examin...Unexpected finding: Some dinosaurs grew slower in hard times
... conditions obtaining in its environment. Although tortoises and crocodiles also do this, plateosaurus engelhardti seems to be unique among dinosaurs, leading experts to puzzle over whether the family history of the dinosaurs will need to be rewritten. 'Basically dinosaurs grew like we do,' the Bonn palaeontol...New taxon of Galpagos tortoise identified
...ized diversity has been discovered among the giant tortoises of the Galpagos, Geochelone nigra, whose distincti...rom extinct taxa. The comprehensive study of these tortoises throughout Galpagos made their discovery possible. Currently 11 of the recognized 15 taxa of tortois...2004 IUCN Red List of Threatened Species reveals 15,589 species at risk of extinction
...hibians (32%) and almost half (42%) of turtles and tortoises are now known to be threatened with extinction, along with one in eight birds (12%) and one in four mammals (23%); There are major gaps in our knowledge of threatened species, and many species-rich groups have been poorly assessed: among plants, fo......s were at the same stage of development. Among the tortoises there were also five pairs which died during copulation, i.e. during the breeding season. One more piece of the puzzle was provided when the Bonn lecturer Dr. Andreas Braun noticed that there are lime deposits in the sedimentary structures of Messel....