Posts Tagged ‘evolutionary biology’
In guys, women pick healthy over manly
U. NOTTINGHAM (UK) — Having a healthy skin color is more important in determining how attractive a man is to women than how manly he looks. Continue…
Friday, February 10, 2012 16:47 - 0 Comments
Science & Technology - Feb 8, 2012 16:46 - 2 Comments
Lizard’s evolution keeps ancestors close
UC DAVIS / DUKE (US) — A devastating 2004 hurricane that wiped out a Caribbean lizard population offered an unprecedented opportunity to put an evolutionary theory known as the “founder effect” to the test. (more…)
Science & Technology - Jan 31, 2012 18:07 - 1 Comment
30-foot prehistoric crocodile wore head ‘shield’
U. MISSOURI (US) — A researcher has identified a new species of prehistoric crocodile nicknamed “Shieldcroc” due to a thick-skinned shield on its head. (more…)
Science & Technology - Jan 31, 2012 14:54 - 0 Comments
Sperm production is costly, crickets show
MONASH U. (AUS) — The production of sperm is more biologically taxing than previously thought, a new study with crickets proves. (more…)
Science & Technology - Jan 31, 2012 12:11 - 16 Comments
Mouse to elephant in 24M generations
MONASH (AUS) — A new study says that it would take 24 million generations for a mouse-sized animal to evolve to the size of an elephant. (more…)
Science & Technology - Jan 30, 2012 10:51 - 1 Comment
After four mutations, new virus attacks
MICHIGAN STATE (US) — Scientists have shown for the first time how a new virus evolves, clarifying how easy it is for diseases to quickly gain dangerous mutations. (more…)
Science & Technology - Jan 26, 2012 18:06 - 0 Comments
33,000-year-old teeth from domesticated dog
U. ARIZONA (US) — An ancient dog skull, preserved in a cave in the Altai Mountains of Siberia for 33,000 years, presents some of the oldest known evidence of dog domestication, say researchers. (more…)
Society & Culture - Jan 26, 2012 12:18 - 0 Comments
Prejudice sparks anger in men, fear in women
MICHIGAN STATE (US) — Group conflict over the ages may have helped shape the way men and women respond to prejudice. (more…)
Science & Technology - Jan 25, 2012 14:15 - 1 Comment
Rigid feathers suggest dinosaur could fly
BROWN (US) — Researchers say the winged dinosaurs Archaeopteryx had rigid black feathers, a finding that suggests that they could fly. (more…)
Science & Technology - Jan 24, 2012 14:27 - 0 Comments
Cavefish cast off eyes for life in the dark
NYU (US) — Researchers say cavefish, having lost their pigmentation and sight from living in complete darkness, are an example of convergent evolution. (more…)
Science & Technology - Jan 23, 2012 12:21 - 1 Comment
Like Lady Gaga, early primate favored claws
U. FLORIDA (US) — Our primate ancestors may have traded flat nails for raised claws in the name of function, much like pop icons Adele and Lady Gaga are doing today in the name of fashion. (more…)
Science & Technology - Jan 16, 2012 12:14 - 0 Comments
From seashell colors, a snapshot of evolution
U. PITTSBURGH (US) — Researchers studying 19 different sea snail species have used a new technique to model the pigmentation patterns of mollusk shells, a discovery that sheds light on how ancient nervous systems evolved. (more…)
Science & Technology - Jan 11, 2012 10:39 - 1 Comment
How ‘molecular machines’ evolved
U. CHICAGO / U. OREGON (US) — New research explains how a few genetic mutations may account for the evolution of complex “molecular machines.” (more…)
Science & Technology - Jan 9, 2012 14:55 - 0 Comments
50-million-year-old crickets with ears
U. COLORADO-BOULDER (US) — A new study of cricket and katydid fossils suggests the insects evolved ears long before bats, their major predator, came along. (more…)
Science & Technology - Jan 9, 2012 14:26 - 0 Comments
‘Extinct’ tortoise found in Galapagos
YALE (US) — Dozens of giant tortoises of a species believed extinct for 150 years may still be living at a remote location in the Galápagos Islands, according to a new genetic analysis. (more…)
Science & Technology - Jan 9, 2012 12:50 - 1 Comment
Hormones unleash ant’s inner ‘Hulk’
MCGILL (CAN) — Researchers report hormones can reawaken ancestral genes in ants—genes that produce giant-headed “supersoldiers.” (more…)
Science & Technology - Jan 3, 2012 10:29 - 0 Comments
Amoeba kinship prevents cheating
U. WASHINGTON-ST. LOUIS (US) — Kinship is to credit for cooperation, according to new research on amoebae, which must band together in order to complete their life cycles. (more…)
Science & Technology - Dec 30, 2011 12:56 - 2 Comments
Tempo matters for female frogs
U. MISSOURI (US) — Certain female tree frogs may be remarkably attuned to the songs of mates who share the same number of chromosomes as they do, a new study shows. (more…)
Science & Technology - Dec 28, 2011 11:05 - 1 Comment
Climate spurs 65M years of evolution
BROWN (US) — Climate change profoundly influenced the rise and fall of six distinct and successive waves of mammal diversity in North America over the last 65 million years, new research shows. (more…)
