搜索结果: 1-15 共查到“extinct”相关记录18条 . 查询时间(0.124 秒)
Breakthrough research examines the effects introduced animals had on Madagascar’s extinct megafauna
extinct animals introduced animals biodiversity ecological system carbon isotope nitrogen isotope
2021/8/5
Madagascar is renowned for its unique and varied biodiversity, which spans dry grasslands, wet rain forests, mangroves and deserts. This variety, combined with the island's isolation and size, has fos...
Rare lichen unique to Florida discovered in museum collection, may be extinct（图）
Rare lichen unique Florida discovered museum collection may be extinct
2021/1/28
Scientists have found a new species of fleshy verdigris lichen, thanks to DNA analysis of museum specimens. Misidentified by its original collectors, the lichen is only known from 32 specimens collect...
Earliest example of a rapid-fire tongue found in 'weird and wonderful' extinct amphibians（图）
Earliest example rapid-fire tongue extinct amphibians
2020/11/20
Fossils of bizarre, armored amphibians known as albanerpetontids provide the oldest evidence of a slingshot-style tongue, a U.S. National Science Foundation-funded study published in Sc...
Body size of the extinct megalodon shark is off the charts（图）
Body siz extinct megalodon shark off the charts
2020/10/16
A new study shows that the body size of the iconic gigantic or megatooth shark, about 15 meters (50 feet) in length, was indeed anomalously large compared to the body sizes of its relatives.Formally c...
Ancient teeth from Peru hint that now-extinct monkeys crossed the Atlantic from Africa（图）
Ancient teeth Peru now-extinct monkeys crossed Atlantic Africa
2020/4/17
Four fossilized monkey teeth discovered deep in the Peruvian Amazon provide new evidence that more than one group of ancient primates journeyed across the Atlantic Ocean from Africa, according to work...
Extinct Caribbean bird yields DNA after 2,500 years in watery grave（图）
Extinct Caribbean bird yields DNA 2,500 years watery grave
2019/10/21
Scientists have recovered the first genetic data from an extinct bird in the Caribbean, thanks to the remarkably preserved bones of a Creighton's caracara in a flooded sinkhole on Great Abaco Island i...
中国地质大学科学技术发展院赖旭龙教授团队 生物地质与环境地质国家重点实验室 Current Biology（2019）,Paleogenome reveals genetic contribution of extinct giant panda to extant populations
首例；古代；大熊猫；全基因组；研究成果。
2021/10/20
2019年5月9日，国际知名学术刊物《当代生物学》（IF=9.251）在线刊发了中国地质大学生物地质与环境地质国家重点实验室赖旭龙教授团队，与德国波兹坦大学、云南省文物考古研究所等研究人员合作，成功测定了首例古代大熊猫全基因组的相关研究成果。
Dr. Xiaoming Wang, Curator and Head of Vertebrate Palaeontology at the Natural History Museum of Los Angeles County, and Dr. Denise Su, Curator & Head of Paleobotany and Paleoecology at the Cleveland ...
New research suggests that the feeding strategy of Kolponomos, a 'marine bear' that lived about 20 million years ago and ate a diet similar to that of modern otters, was strangely similar to a very di...
Minor gradient in mortality by education at the highest ages: An application of the Extinct-Cohort method
extinct cohort oldest old mortality socioeconomic mortality differentials
2014/11/25
Background: Socioeconomic mortality differentials are known to exist almost universally. Many studies show a trend towards convergence with increasing age. Information about the highest ages is very r...
A Papua New Guinea bat species thought to be extinct has been rediscovered by a team of University of Queensland researchers.
Bighorn sheep went extinct on desert island in Gulf of California, study finds
Bighorn sheep extinct desert island Gulf of California
2014/3/28
RIVERSIDE, Calif. — Using ancient DNA analysis and other techniques, a research team led by conservation biologists at the University of California, Riverside has determined that bighorn sheep, so nam...
Eggshell of extinct giant bird unlocks key to ancient DNA（图）
Eggshell of extinct giant bird ancient DNA
2010/3/24
Ancient DNA from the fossil eggshell remains of the extinct elephant bird, has been successfully extracted thanks to help from a University of Sheffield expert - marking a world-first for archaeology ...
Researchers uncover DNA sequence of extinct ancient cattle（图）
DNA sequence extinct ancient cattle
2010/2/23
Researchers, based in Ireland and Britain, have found the complete mitochondrial DNA genome sequence of ancient wild cattle using a sample from a 6,700 year-old bone.They assembled the mitochondrial D...
Anew species of extinct bullhead sharks,Paracestracion viohli sp. nov.(Neoselachii, Heterodontiformes),from the Upper Jurassic of South Germany
Heterodontidae Late Jurassic Schamhaupten Diversity
2009/10/20
The early history of heterodontid sharks is documented mainly by isolated teeth. So far, three different heterodontid genera have been recorded from the Jurassic: Proheterodontus from theMiddle Jurass...