Researchers make flapping machines that take off
But protection from some immune conditions weakens after several years
Researchers have developed the first three-dimensional simulation of the evolution of morphology by integrating the mechanisms of genetic regulation that take place during embryo development. The study highlights the real complexity of the genetic interactions that lead to adult organisms' phenotypes (physical forms), helps to explain how natural selection influences body form and leads towards much more realistic virtual experiments on evolution.
Bone-eating worms produce chemicals to dissolve and feed on skeletons
Girl’s remains reflect desperation of starving Jamestown settlers
Simple relationship between velocity and number of spokes in star-shaped fracture
An integrative anatomy expert says the shape of an 11.8-million-year-old specimen's pelvis indicates that it lived near the beginning of the great ape evolution, after the lesser apes had started to develop separately but before the great ape species began to diversify.
Tiny camera with 180 linked lenses captures panoramic views, could provide surveillance
The White House hosts scores of student researchers
Scientists transplant a rebuilt kidney into a rat
The germ responsible carries genes from other flu viruses
Scientists build a transistor from DNA
Computer program decodes dreams, finds similar brain activity patterns for objects seen while asleep or awake
A tiny bird fossil discovered in Wyoming offers clues to the precursors of swift and hummingbird wings. The fossil is unusual in having exceptionally well-preserved feathers, which allowed the researchers to reconstruct the size and shape of the bird's wings in ways not possible with bones alone.
Diminutive size came before specialized wings
Modern bird genomes reveal evidence that virus is at least 82 million years old
For the first time, fossil jaw measurements confirm that land animals developed legs millions of years before their feeding systems changed enough to let them eat a land-based diet. The pattern had been hypothesized previously, but not really tested.
Storm dwarfs anything on Earth
Predecessors to dinosaurs missed the race to fill habitats emptied when nine out of 10 species disappeared during Earth's largest mass extinction 252 million years ago.