Discoveries from the early stages of owl evolution are exceedingly rare. An approximately 60-million-year-old leg bone is the oldest fossil that can be assigned to an owl. "Other owls from this time period are also only known ...
Archaeology
Jul 28, 2020
0
35
Fluctuations in the Pacific Walker circulation (PWC), a zonally-oriented overturning cell across the tropical Pacific, can cause widespread climatic and biogeochemical perturbations. It remains unknown how the PWC developed ...
Archaeology
May 20, 2020
0
11
The modern environment of southern China is dominated by a humid monsoon climate, and presents a striking contrast to the widespread deserts found at similar latitudes elsewhere.
Earth Sciences
May 12, 2020
0
4
A new study from University of Michigan climate researchers concludes that some of the latest-generation climate models may be overly sensitive to carbon dioxide increases and therefore project future warming that is unrealistically ...
Environment
Apr 30, 2020
29
1535
The discovery of the earliest known modern amphibians in Antarctica provides further evidence of a warm and temperate climate in the Antarctic Peninsula before its separation from the southern supercontinent, Gondwana. The ...
Archaeology
Apr 23, 2020
0
138
The holly genus, Ilex L., in the monogeneric Aquifoliaceae, is the largest woody dioecious genus (more than 664 species). It has a very uniform reproductive biology and is instantly recognizable in flower or fruit, although ...
Archaeology
Mar 6, 2020
0
9
A fossilised leafy branch from the early Eocene in Patagonia described in 1941 is still often cited as the oldest bamboo fossil and the main fossil evidence for a Gondwanan origin of bamboos. However, a recent examination ...
Archaeology
Feb 4, 2020
0
120
The Earth's Cenozoic Era began 66 million years ago with a bang—and with the last mass extinction event on Earth until now. The meteorite impact that marked the end of the Cretaceous Period and the beginning of the Cenozoic ...
Earth Sciences
Jan 7, 2020
0
13
Holding particular biological resources, the Tibetan Plateau is a unique geologic-geographic-biotic interactive unit and hence plays an important role in the global biodiversity domain. The Tibetan Plateau has undergone vigorous ...
Evolution
Dec 30, 2019
0
36
Scientists have a relatively precise idea about where whales and their closest terrestrial relatives evolved more than 50 million years ago (early Eocene), thanks to the discovery of ancient cetacean fossils in India and ...
Archaeology
Nov 9, 2019
0
118
