Evolutionary Biology News
February 8, 2016

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More Evolutionary Biology News
February 8, 2016

Feb. 1, 2016 — The genome of eelgrass (Zostera marina) has now been unveiled. It turns out that the plant, once land-living but now only found in the marine environment, has lost the genes required to survive out ... read more

Jan. 28, 2016 — Live mouse progeny can be generated with assisted reproduction using germ cells from males without any Y chromosome genes. In these males, the two Y genes previously demonstrated to be essential for ... read more

Jan. 28, 2016 — One of the big questions for which there is still no clear answer in biology is how, based on the four universal letters that make up DNA, it is possible to generate such different organisms as a fly ... read more

Mating Behavior in the Natural World Contradicts Darwin’s Idea That Females Make the Decisions, Researchers Find

Jan. 28, 2016 — A provocative study by evolutionary biologists takes on one of Charles Darwin’s central ideas: that males adapt and compete for the attention of females because it is the females who ultimately ... read more

Jan. 28, 2016 — Queen bees and ants emit a chemical that alters the DNA of their daughters and keeps them as sterile and industrious workers, scientists have found. The team found evidence that workers exposed to ... read more

Jan. 27, 2016 — Using head shape and genetic analyses, new research challenges the formerly designated subspecies within the western rattlesnake species. These findings have important implications for ecological ... read more

Jan. 27, 2016 — The first females of a scarcely known chameleon species from Northeast Madagascar have been described. Because of lack of genetic data, X-ray micro-computed tomography scans of the chameleon's ... read more

Jan. 27, 2016 — Ancient rodent Paramys had a large brain that was even larger than some primitive primates of the same ... read more

Jan. 27, 2016 — Evolutionary biologists often debate on whether sexual selection can lead to new species. Most studies have focused on natural selection or, for the few studies that considered sexual selection, on ... read more

Jan. 27, 2016 — It is the disappearance of a glycolipid from the bacterial cell envelope during evolution that may have considerably increased the virulence of tuberculosis bacilli in humans. Scientists have shown ... read more

Sequence of Rare Hawaiian Crow's Genome Will Assist Conservation Efforts

Jan. 27, 2016 — Scientists have fully sequenced the genome of the Hawaiian crow. This crow was once reduced to a population of about 20 birds, and the sequencing of the species genome will be important to track any ... read more

Scientists Demonstrate Key Aspect of Evolutionary Theory

Jan. 26, 2016 — Evolutionary theory predicts that pairs of chromosomes within asexual organisms will evolve independently of each other and become increasingly different over time in a phenomenon called the ... read more

Jan. 25, 2016 — Despite decades of research, the idea that relative brain size predicts cognitive abilities remains highly controversial, because there is still little experimental evidence to support it. However, a ... read more

Jan. 25, 2016 — A well-known songbird, the great tit, has revealed its genetic code, offering researchers new insight into how species adapt to a changing planet. Their initial findings suggest that epigenetics -- ... read more

Jan. 22, 2016 — When Charles Darwin visited the Azores islands in the 19th Century, the birds he observed were familiar to him. However, if he had travelled there 500 years before, he would have found an ... read more

Jan. 22, 2016 — Snowshoe hare populations could decline steeply by mid-century unless the hares are able to adapt to winters with less snowfall, when their white coats make them easy prey. The good news: A wide ... read more

Jan. 21, 2016 — Why do animals engage in sexual reproduction? Biologists sought answers with mud snails that breed both sexually and asexually. They found that asexual snails grow faster and reach reproductive age ... read more

Jan. 21, 2016 — Why do some ants become workers, while others turn into queens? Many scientists have come to believe that DNA methylation, a mode of genetic regulation in which chemical tags turn genes on or off, is ... read more

Jan. 21, 2016 — As many as twenty-four new species are added to a single genus of beetles. Originally from the rainforests of Queensland, Australia, most of the specimens have been sitting undescribed in various ... read more

Jan. 21, 2016 — Cuckoos are nest parasites, meaning they lay their eggs in other birds' nests. The female cuckoo has to lay eggs that mimic the color, size and shape of the eggs of the host bird. Using a ... read more

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