Posts Tagged ‘evolution’
Why some GM crops fail to fight pests
U. ARIZONA (US) — Some genetically modified crops deter pests for a decade or longer, while others fail after a few years. A new global assessment may help explain why. Continue…
Tuesday, June 18, 2013 10:21 - 1 Comment
Earth & Environment - Jun 14, 2013 15:51 - 0 Comments
Speedy evolution may help sea urchins survive
UC SANTA BARBARA (US) — Rapid adaptation could be sea urchins’ primary weapon against acidification and climate change as the carbon content of the ocean increases. (more…)
Health & Medicine - Jun 13, 2013 11:01 - 0 Comments
HIV and ‘hot spring’ virus hijack same protein
INDIANA U. (US) — There’s a surprising connection between HIV, Ebola, and viruses that infect organisms called archaea that grow in volcanic hot springs. (more…)
Science & Technology - Jun 12, 2013 11:42 - 0 Comments
New genes evolve to prevent inbred plants
MCGILL (CAN) — Even though a group of plants lost the complex genes for self-pollen recognition, a few other genes have picked up the slack to prevent inbreeding, researchers report. (more…)
Earth & Environment - Jun 11, 2013 14:42 - 0 Comments
Tropical ‘bridge species’ drive biodiversity
U. CHICAGO (US) — By examining marine bivalves—scallops, cockles, and oysters—a new study shows that most evolutionary lineages started in the tropics and expanded outward. (more…)
Science & Technology - Jun 11, 2013 10:00 - 0 Comments
Are self-fertilizing plants their own worst enemy?
U. TORONTO (CAN) — It’s called self-fertilizing or “selfing” and, while it guarantees reproduction, plants that practice it may be contributing to their own demise. (more…)
Science & Technology - Jun 10, 2013 12:26 - 0 Comments
Female squid ingests sperm to keep eggs strong
MONASH (AUS) — Female southern bottletail squid consume the sperm of mating partners, a trait never before associated with any species of cephalopod. (more…)
Science & Technology - Jun 7, 2013 15:18 - 3 Comments
Plankton fossils found in 3 billion-year-old rocks
PENN STATE (US) — Researchers say they’ve discovered microfossils of plankton in 3 billion-year-old rocks. (more…)
Science & Technology - Jun 6, 2013 8:22 - 0 Comments
The fastest-evolving fish on the planet
U. MICHIGAN (US) — Often called “living fossils,” the prehistoric-looking sturgeon are actually evolving very quickly when it comes to body size. (more…)
Top Stories - Jun 5, 2013 10:26 - 1 Comment
6-foot-long lizard shared planet with mammals
DUKE / UC BERKELEY (US) — One of the biggest known lizards to ever live on land roamed tropical forests alongside mammals some 40 million years ago. (more…)
Top Stories - Jun 4, 2013 7:09 - 3 Comments
Ancient reptile reveals how the turtle got its shell
YALE (US) — New research pushes back the origin of the turtle’s shell by about 40 million years, linking it to a 260-million-year-old fossil reptile from South Africa. (more…)
Top Stories - May 30, 2013 9:38 - 0 Comments
Genome of frog-killing fungus sequenced
CORNELL (US) — Researchers have sequenced the genomes of 29 strains of a fungus that is responsible for the mass killing of amphibians around the world. (more…)
Society & Culture - May 22, 2013 11:35 - 1 Comment
Did abrupt climate change spark human culture?
CARDIFF U. (UK) — Rapid climate change 80,000 to 40,000 years ago, the Middle Stone Age, may have sparked cultural innovation in early modern humans, according to new research. (more…)
Science & Technology - May 21, 2013 13:57 - 0 Comments
Biology can’t run on genes alone
UC DAVIS (US) — Don’t lose the organism in the excitement over its genes, say biologists, who caution against straying too far from the actual plants, animals, and microorganisms. (more…)
Society & Culture - May 21, 2013 11:00 - 2 Comments
Strong guys less willing to share wealth
UC SANTA BARBARA (US) — Upper body strength and socioeconomic status can predict men’s opinions on the redistribution of wealth, according to researchers. (more…)
Top Stories - May 20, 2013 10:18 - 2 Comments
Big data sets create ‘tree of life’ confusion
VANDERBILT (US) — The genomics revolution has given experts mountains of DNA data to reconstruct the evolution of all living beings, but the vast information has led to contradictory conclusions. (more…)
Science & Technology - May 16, 2013 12:01 - 2 Comments
Wait for it: Ants pick perfect time to forage
STANFORD (US) — A biologist’s decades-long study of the collective behavior of harvester ant colonies has provided a rare real-time look at natural selection at work. (more…)
Earth & Environment - May 14, 2013 11:36 - 1 Comment
Plants do better far away from close relatives
U. TORONTO (CAN) — Charles Darwin got it right. Plant species that share environments with those that are distantly related are more productive. (more…)
Science & Technology - May 14, 2013 10:48 - 0 Comments
‘Simple path’ from fish hips to 4-legged walk
MONASH U. (AUS) — The evolution of the complex, weight-bearing hips of walking animals from the basic hips of fish was a much simpler process than previously thought, report researchers. (more…)
