Floral displays, such as the color, shape, size, and arrangement of flowers, are typically thought to have evolved primarily in response to selection by pollinators—for animal-pollinated species, being able to attract ...
Plants & Animals
Jun 8, 2012
0
0
Following herbivory, plants produce jasmonic acid, a hormone which activates several plant defense reactions. Scientists found that leafhoppers can evaluate whether tobacco plants are ready for defense when attacked. If jasmonate-signaling ...
Biotechnology
May 23, 2012
0
0
Decades of conservation efforts to save rhinos are coming undone, as surging demand for their horns in Asian traditional medicine has spawned a vast criminal trade powered by poaching.
Ecology
May 7, 2012
5
0
The first Australians hunted giant kangaroos, rhinoceros-sized marsupials, huge goannas and other megafauna to extinction shortly after arriving in the country more than 40,000 years ago, new research claims.
Ecology
Mar 22, 2012
25
1
Two new horned dinosaurs have been named based on fossils collected from Alberta, Canada. The new species, Unescopceratops koppelhusae and Gryphoceratops morrisoni, are from the Leptoceratopsidae family of horned dinosaurs. ...
Archaeology
Mar 12, 2012
1
1
Elephants and maybe rhinoceroses could be introduced to Australia to chomp on an invasive African grass that also causes wildfires, according to an idea reported in a scientific journal on Wednesday.
Ecology
Feb 1, 2012
16
0
For the first time, the presence of large bodied herbivorous dinosaurs in Antarctica has been recorded. Until now, remains of sauropoda - one of the most diverse and geographically widespread species of herbivorous dinosaurs ...
Archaeology
Dec 19, 2011
6
1
After hiking in Oregon, a University of Oregon plant biologist suggests, people may want to brush off their shoes and comb through their dogs in an effort to curb the spread of an invasive grass that is expanding its range.
Ecology
Nov 15, 2011
0
1
New research has brought us a step closer to untangling the complex reasons why certain plant species triumph over others.
Plants & Animals
Oct 21, 2011
3
0
Toxins from Bacillus thuringiensis bacteria (Bt toxins) are used in organic and conventional farming to manage pest insects. Sprayed as pesticides or produced in genetically modified plants, Bt toxins, used in pest control ...
Biotechnology
Oct 19, 2011
0
0
