Tag: "cave" at biology news
Fossils reveal direct link between global warming and genetic diversity in wildlife
...ortheast entrance to the park. "The deposit in the cave
is about nine yards deep and it took me seven years to excavate and identify the fossils," Hadly said. "It contains hundreds of thousands of bones and represents a continuous fossil record dating back 3,000 years. This timescale allows us to really i...
2004 BP Conservation Programme winners pave the way for protecting wildlife
...car. The work will include bat-plant interactions, cave
conservation, species ecology and the role of bats in maintaining biodiversity. The second Consolidation award goes to the 'Mpingo Project' in Tanzania. The East African Blackwood (Dalbergia melanoxylon), locally known as the Mpingo tree, is used to...
Artificial light-dark cycles expose circadian clocks at odds with each other
...erhaps spelunkers spending two weeks inside a dark cave
typically believe they have been isolated for a much shorter time than they really have been. That's because, lacking the usual time cues, the body's internal clocks start cycling at different paces, one running with the normal human period and one ...
New evidence points to pollution as main cause of much coral reef destruction
...ndwater samples taken from deep inside a submerged cave
on the island. Study results supported Lapointe's past research that revealed a critical threshold for nitrogen of about 14 parts per billion, above which damaging seaweed spread is supported and below which it is generally prevented. By comparison,...
Pack rat middens give unique view on evolution and climate change in past million years
... is affected by climate change. "Everything in the cave
has been nicely preserved at a controlled temperat...9,500 years ago. Sediments of that age in a Nevada cave
still contain the animals' fossilized teeth. In the last 10,000 years, however, the original vole ha...
Earliest European modern humans found
...d a human jawbone from a Romanian bear hibernation cave
to between 34,000 and 36,000 years ago. That makes...fossil in Europe. Other human bones from the same cave
-- a temporal bone, a facial skeleton and a partial braincase -- are still undergoing analysis, but ...
Bones from French cave show Neanderthals, Cro-Magnon hunted same prey
... some people to drop. Cro-Magnon created the first cave
art, but late Neanderthals made body ornaments, so...rn humans played a role in the extinction of giant cave
bears in Europe. Cro-Magnon may have been the original "apartment hunters" and displaced the bears ...
More than 700 threatened species remain completely unprotected, new study shows
...e Wuchuan Frog (Rana wuchuanensis) found only in a cave
in Guizhou, China. The world's 1,183 threatened bird species, mapped and assessed by BirdLife International, were also analyzed, revealing 223 gap species. Though birds are the best-studied group, close to 20 percent of threatened species have absol...
The prehistory of neotropical lowland forests
...ter, and D. Piperno) on oxygen isotope ratios from cave
deposits in Panama and Costa Rica, which shows the late Pleistocene to have been cooler and/or drier than the early and mid-Holocene, with an abrupt transition at about 11,000 years ago. During the Holocene, smaller variations in precipitation took p...
Fulbright fellow develops environmental biology courses in Zimbabwe
... of Biblical stories. Buikema visited the Bushman cave
paintings, took a couple of bush trips, and got to walk with the white rhinos. One of the best experiences he had was the inter-city Methodist church, with services and music in the Shona language. The churcha roof with a concrete slab and one par...
Cave men diets offer insights to today's health problems, study shows
...ieties. But there's a catch: To be as healthy as a cave
man you have to eat certain kinds of fish, wild game such as venison, or grass-fed meat such as beef. The research was conducted by Bruce Watkins, professor and university faculty scholar at Purdue University and director of the Center for Enhancing ...
World's smallest lizard discovered in Caribbean
...ups of the new species living in a sink hole and a cave
in a partially destroyed forest on the remote island of Beata, which is part of the Jaragua National Park in the Dominican Republic. "Our discovery illustrates that we still don't know everything about the Earth's species, even in areas that are ve...
World's smallest lizard discovered in the Caribbean
...oups of the newspecies living in a sink hole and a cave
in a partially destroyedforest on the remote island of Beata, which is part of theDominican Republic's Jaragua National Park. "Our discovery illustrates that we still don't knoweverything about the Earth's species, even in areas that are veryclo...
African bone tool discovery has important implications for evolution of human behavior
...e includes the recent discovery in a South African cave
of a large set of specialized bone tools, all date...d related artifacts recovered from Blombos Cave, a cave
in a cliff overlooking the Indian Ocean at the extreme southern tip of South Africa. Though other bo...
...l specimens. The infant, discovered in Mesmaiskaya cave
in south-western Russia, was dated at 29,000 years..."just a chunky modern kid". And if the Mesmaiskaya cave
baby is a modern human, Wolpoff argues, its ancient-looking mitochondrial DNA sequence could simply ...
Anthropologists find evidence of early humans in southern China cave
...ina cave. The evidence for human occupation of the cave
is clear. There are stone tool cut marks on the an...rah Bakken (Field Museum) have been working in the cave
since 1996, in collaboration with colleagues from the Chinese Academy of Sciences. They will report ...
New fossil study rejects 'Eve theory'
...rent features of the fossil skulls from the Mladec cave
in the Czech Republic and a skull from the Willandra Lakes region of Southeastern Australia to the other fossil skulls that could be ancestors. In each case, they analyzed in how many respects the Mladec and Australian skulls were like the other sku...
Scientists track phosphate to better understand global warming
...archives, such as coral, tree rings, ice cores and cave
and lake deposits. But for the longer time scales you have to go to marine sediments." Reading the chemical signatures of the sediments, Paytan tries to correlate phosphate burial in the ancient ocean with carbon dioxide levels in the ancient atmosp...
Huge new hydrothermal vent system found on seafloor
...rays of delicate, white flanges emerge. Similar to cave
deposits, complex, intergrown stalagmites rise several meters above the flange roofs. Underneath the flanges, trapped pools of warm fluid support dense mats of microbial communities that wave within the rising fluids. Downslope, hundreds of...
Best bet for saving cave species
...s worldwide and 95% are imperiled. But protecting cave
species should be relatively easy because they ar...s, insects and arachnids comprise the majority of cave
species and most are eyeless, unpigmented and delicate-looking. These characteristics led people in...