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After mastodons and mammoths, a transformed landscape
And when their populations crashed, emptying a land whose diversity of large animals equaled or surpassed Africa's wildlife-rich Serengeti plains then or now, an entirely novel ecosystem emerged ...
Earth Sciences |
Read moreBees Can Learn Differences in Food’s Temperature
While other researchers had previously found hints that bees might have the ability to do this, the UCSD biologists provide the first detailed experimental evidence in a paper that will be published i...
Life Sciences | Read moreStudy Finds Bees Can Learn Differences in Food’s Temperature
While other researchers had previously found hints that bees might have the ability to do this, the UCSD biologists provide the first detailed experimental evidence in a paper that will be published i...
Life Sciences | Read moreCalifornia's Ancient Kelp Forest
The kelp forest tripled in size from the peak of glaciation 20,000 years ago to about 7,500 years ago, then shrank by up to 70 percent to present day levels, according to the study by Rick Grosberg, p...
Ecology, The Environment and Conservation | Read moreWell-traveled wasps provide hope for vanishing species
The fig wasps travel these distances in search of trees to lay their eggs, which offers hope that trees pollinated by similar creatures have a good chance of surviving if they become isolated through ...
Life Sciences | Read morePropolis has proved to be a product with ability to have beneficial effects for health
The benefits of this product lies in its composition and, thus, its study, identification and subsequent extraction provides a useful tool which enables making high added-value products, given their h...
Health and Medicine | Read moreCan Bumble Bees Fill Pollination Void?
The findings, which will be published in the November/December 2009 issue of Crop Science, offer promise for the use of bumble bee crop pollinators as an alternative to European honey bees, whose popu...
Agricultural and Forestry Science | Read morePlant fossils give first real picture of earliest Neotropical rainforests
Researchers from the Smithsonian Institution and UF, among others, found that many of the dominant plant families existing in today’s Neotropical rainforests — including legumes, palms, avocado and ba...
Earth Sciences | Read moreThe first neotropical rainforest was home of the Titanoboa
"Modern neotropical rainforests, with their palms and spectacular flowering-plant diversity, seem to have come into existence in the Paleocene epoch, shortly after the extinction of the dinosaurs...
Agricultural and Forestry Science | Read moreCell death occurs in the same way in plants, animals, and humans
Now an international constellation of research teams, including one at the Swedish University of Agricultural Sciences, has shown that parts of the genetic programs that determine programmed cell deat...
Life Sciences | Read moreArctic lakes help scientists understand climate change
An international team of scientists, led by Darrell Kaufman, a Northern Arizona University professor of geology and environmental science, recently completed a five-year study that places the recent w...
Earth Sciences | Read moreUnlocking Secrets of Plants’ Growing Tips
The biologists conducted these experiments in a moss, but the findings illuminate processes in two tissues—root hairs and pollen tubes—found in all seed plants. Root hairs are extremely fine individua...
Life Sciences | Read moreStudy finds higher pathogen loads in collapsed honeybee colonies
The researchers, who represented Penn State's College of Agricultural Sciences, University of Liege, Gembloux Agricultural University, North Carolina State University and the U.S. Department of A...
Agricultural and Forestry Science | Read moreGenome Duplication Responsible for More Plant Species than Previously Thought
Plant biologists have long suspected polyploidy -- the heritable acquisition of extra chromosome sets -- was a gateway to speciation. But the consensus was that polyploidy is a minor force, a mere ano...
Life Sciences | Read moreStudy Catalogs Black Hills Bees for Biology Research
South Dakota State University researchers will inventory native species of bees in the Black Hills region starting in late 2009.SDSU Plant Science Entomologist and Professor Paul Johnson said ...
Life Sciences | Read more
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