The oldest living animal species on earth cannot be known for sure, because not every animal species or fossil (化石) has yet been discovered, but the current best guess is the horseshoe crab (马蹄蟹), which has remained pretty much unchanged since the Ordovician (奥陶纪) period, 445 million...
【题目】阅读理解BThe oldest living animal species on earth cannot be knownfor sure, because not every animal species or fossil has yet beendiscovered, but the current best guess is the horseshoe crab,which has remained pretty much unchanged since the Ordovician(奥陶纪)period, 445 million years ...
The world's oldest known zoo gorilla (大猩猩) named Colo has died. Colo was born in 1956at the Columbus Zoo in the American state ofOhio.Colo touched the hearts of generations ofpeople, " said Columbus Zoo officials. "She inspiredpeople 61.(earn(learn) more about theendangered species and...
The oldest known gorgonopsians lived roughly 265 million years ago. However, the new fossil is from 270 to 280 million years ago, beating them by five to 10 million years. [ Related: New fossils of tiny, toothy early mammals could be a major missing link. ] “It is most likely the ...
[00:00.04]Scientists discovered the oldest known DNA [00:04.48]and used it to study what life was like 2 million years ago in Greenland. [00:10.76]Today, northern Greenland is an empty, cold area. [00:16.32]But in the past, it ...
It was nicknamed Ming after the Chinese dynasty which was in power during the clam’s birth year, 1506. Elsewhere in the same year, Leonardo da Vinci was at work on hisMona Lisa, which holds the record for thehighest known insurance valuation for a painting. ...
The oldest known bones of our species, dating back around 300,000 years, have been discovered in a cave in Morocco. The fossils — which belong to five individuals, including a teenager and a younger child — push backthe origin ofHomo sapiensby 100,000 years, scientists say. The fossils...
When Jonathan was brought to St Helena, he was already fully grown. Based on known data for this species, that would indicate he was about 50 years of age at the time (hence his estimated birth year of 1832 to make him the longest-lived animal on land). Jonathan was gifted to...
Oldest known ant fossils discovered 来自 ideas.repec.org 喜欢 0 阅读量: 25 作者:D Agosti,D Grimaldi,JM Carpenter 摘要: Here we report fossil ants, including a new genus of Ponerinae, about 50 million years (Myr) older than the previous oldest specimens. These discoveries in amber from ...
In an Amazonian rainforest, for example, ants make up more than 25% of the total animal biomass.doi:10.1038/35051Donat AgostiDavid GrimaldiJames M. CarpenterNatureAgosti, D., D. A. Grimaldi, and J. M. Carpenter. 1997 . Oldest known ant fossils discovered. Nature 391: 447 ....