hESCs, evolution, ecology
Dino Snouts from Chicken Beaks
Dino Snouts from Chicken Beaks
Bob Grant | May 13, 2015
Researchers tweak gene expression in chicken embryos that may have been crucial to the evolutionary transition from dinosaur noses to bird bills.
Estimating Epigenetic Mutation Rates
Estimating Epigenetic Mutation Rates
Jenny Rood | May 11, 2015
Generation-spanning maps of Arabidopsis thaliana DNA methylation allow researchers to compute how quickly epigenetic marks appear and disappear in the plant’s genome.
The Rise of Heads
The Rise of Heads
Bob Grant | May 11, 2015
A 500 million-year-old brain fossil yields clues to the evolution of heads.
Oldest Ancestor of Modern Birds Found
Oldest Ancestor of Modern Birds Found
Jenny Rood | May 6, 2015
Fossils of a new species discovered in China suggest birds developed 6 million years earlier than previously thought.
Climate Change Speeds Extinctions
Climate Change Speeds Extinctions
Kerry Grens | May 3, 2015
Species die-offs are expected to accelerate as greenhouse gases accumulate, according to a meta-analysis.
Winged Dino Found?
Winged Dino Found?
Bob Grant | May 1, 2015
Researchers describe a small species that may have soared through Jurassic skies on membranous wings like those of bats and flying squirrels.
Eye Stem Cell Therapy Moves Ahead
Eye Stem Cell Therapy Moves Ahead
Kate Yandell | Apr 30, 2015
Researchers inject retinal support cells derived from human embryonic stem cells into the eyes of four men with macular degeneration, bolstering evidence of the experimental treatment’s safety.
Similar Strokes
Similar Strokes
Jenny Rood | Apr 29, 2015
Physics drove the convergent evolution of swimming in 22 unrelated marine species, a study suggests.
Bees Drawn to Pesticides
Bees Drawn to Pesticides
Kerry Grens | Apr 24, 2015
One study shows the insects prefer food laced with pesticides, while another adds to the evidence that the chemicals are harmful to some pollinators.
Citrus History
Citrus History
Jenny Rood | Apr 16, 2015
An analysis of 34 chloroplast genomes reveals how and when modern fruit varieties evolved from a common ancestor.