The ancient cycad lineage has been around since before the age of the dinosaurs. More recently, cycads also co-existed with large herbivorous mammals, such as the ice age megafauna that only went extinct a few tens of thousands ...
Plants & Animals
Aug 20, 2013
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Scientists have long known that seeds gobbled by birds and dispersed across the landscape tend to fare better than those that fall near parent plants where seed-hungry predators and pathogens are more concentrated.
Ecology
Jun 21, 2013
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Scientists at the University of York have uncovered new insights into the way seeds use gene networks to control when they germinate in response to environmental signals.
Biotechnology
Jun 10, 2013
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Having a neighborly chat improves seed germination, finds research in BioMed Central's open access journal BMC Ecology. Even when other known means of communication, such as contact, chemical and light-mediated signals, are ...
Ecology
May 6, 2013
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(Phys.org) —The discovery pushes back the roots of agriculture in China by 12,000 years. The global emergence of similar practices around 23,000 years ago hints that agriculture evolved independently around the world, perhaps ...
Archaeology
May 3, 2013
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Hydrogen sulfide, the pungent stuff often referred to as sewer gas, is a deadly substance implicated in several mass extinctions, including one at the end of the Permian period 251 million years ago that wiped out more than ...
Plants & Animals
Apr 17, 2013
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Aggregations of the red and black colored firebugs are ubiquitous under linden trees in Central Europe, where the bugs can reach astounding population densities. While these insects have no impact on humans, their African, ...
Cell & Microbiology
Jan 9, 2013
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(Phys.org)—Unlike flowering plants, bracken ferns do not release any odour signals to attract the enemies of their attackers for their own benefit.
Plants & Animals
Nov 21, 2012
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Double flowers—though beautiful—are mutants. The genetic interruption that causes that mutation previously helped scientists pinpoint the genes for normal development of flower sexual organs in Arabidopsis thaliana. Now ...
Evolution
Sep 4, 2012
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Biochemists at the University of California, Riverside report a new role for vitamin C in plants: promoting the production of twins and even triplets in plant seeds.
Biochemistry
Jun 18, 2012
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