All Articles Tagged As: fish
 | Study argues observed changes in freshwater fish demographics occurred in response to climate change over the past three million years ...> Full Article |
 | Evolutionary history of the comb jelly reveals surprising clues about Earth's first animal ...> Full Article |
 | 'Junk DNA' could hold the secret of the evolutionary origin of complex animals, according to new research from Dartmouth College (NH, USA) and the University of Bristol (UK). ...> Full Article |
 | Hybridizing blind cave fish from different cave populations can partially restore the vision of their offspring, biologists at New York University have found. The study suggests that genetic engineering can override, at least in part, half a million years of evolutionary change in one generation. ...> Full Article |
 | When humans began to migrate out of Africa about 100,000 years ago, their skin color gradually changed to adapt to their new environments. And when the last Ice Age ended about 10,000 years ago, marine ancestors of ocean-dwelling stickleback fish experienced dramatic changes in skin coloring as they colonized newly formed lakes and streams. New research shows that despite the vast evolutionary gulf between humans and the three-spined stickleback fish, the two species have adopted a common genetic strategy to acquire the skin pigmentation that would help each species thrive in their new environments. ...> Full Article |
 | Piranhas inhabit exclusively the fresh waters of South America. Their geographical distribution extends from the Orinoco River basin (Venezuela) to the North, down to that of the Paraná (Argentina) to the South. Over this whole area, which also embraces the entire Amazon Basin, biologists have recorded 28 carnivorous species of these fish (2). In spite of the evolutionary success of this subfamily of fish, the mechanisms that generated the species richness of this group are still insufficiently known. ...> Full Article |
 | University of Queensland research has found the 'missing link' in the evolution of the eye. ...> Full Article |
 | A gene has been found in male cichlid fish that evolved to lure female fish so that male cichlids can deposit sperm in the females mouths. A study in the online open access journal BMC Biology reveals that the gene is associated with egg-like markings on the fins of cichlid fishes and uncovers the evolutionary history of these markings, which are central to the success of the fishes' exotic oral mating behaviour. ...> Full Article |
 | An international team of researchers has demonstrated how Atlantic cod responded to past natural climate extremes. The new research could help in determining the vulnerability of cod to future global warming. ...> Full Article |
 | When prehistoric fish made their first forays onto land, what did they see? According to a study published in the online open access journal, BMC Evolutionary Biology, it's likely that creatures venturing out of the depths viewed their new environment in full colour. ...> Full Article |
Scientists answer century old developmental question
...> Full Article
 | Searching for a different kind of riches in the ground, an oil company made a priceless find it never expected. ...> Full Article |
 | An international team of scientists from Canada (Université Laval), the U.K. (University of Hull, Cardiff University) and Spain (Doňana Biological Station), have discovered that a pair of closely related species of East African cichlid fishes -- a group of fish whose diversity comprising hundreds of species has puzzled evolutionary biologists for decades -- evolved divergent immune gene adaptations which might explain why they do not interbreed, despite living side by side. ...> Full Article |
 | When the first four-legged animals sprouted fingers and toes, they took an ancient genetic recipe and simply extended the cooking time, say University of Florida scientists writing in Wednesday's issue of the journal PLoS One. ...> Full Article |
 | Assessing the projected impacts of invasive species is a leading issue for scientists today. A major question for ecologists is determining which characteristics will predispose a species to be a good or bad colonizer when introduced into an ecosystem. New research from assistant professor at the UGA Odum School of Ecology John Drake adds another piece to the invasive species puzzle. ...> Full Article |
 | Researchers at North Carolina State University have received a five-year, $1.4 million grant from the National Institutes of Health (NIH) to develop a series of "photo-switchable" compounds that will allow scientists to turn individual genes on and off within zebrafish embryos, enabling them to determine the function of particular genes. ...> Full Article |
 | A research team, including UC Riverside biologists, has found experimental evidence that supports a controversial theory of genetic conflict in the reproduction of those animals that support their developing offspring through a placenta. ...> Full Article |
 | A 400 million-year-old fossil of a coelacanth fin, the first finding of its kind, fills a shrinking evolutionary gap between fins and limbs. University of Chicago scientists describe the finding in a paper highlighted on the cover of the July/August 2007 issue of Evolution & Development. ...> Full Article |
A new, more efficient technique for generating systematic zebrafish gene knockouts may soon provide the genomic research community with a comprehensive zebrafish gene knockout bank. In last week's online edition of the Proceedings of the National Academy of Sciences, researchers from the National Human Genome Research Institute (NHGRI), part of the National Institutes of Health (NIH); the University of California, Los Angeles; and Peking University in Beijing, China, reported developing a technology to knockout zebrafish genes in a stable, targeted manner.
...> Full Article
 | One of the world's strangest creatures has found its long-lost kin. Oxford University scientists have discovered that an extremely rare gutless worm is related to sea anemones and jellyfish, rather than similar-looking animals, reports this week's Science. The finding could cause an evolutionary rethink. ...> Full Article |
 | Fish use the threat of punishment to keep would-be jumpers in the mating queue firmly in line and the social order stable, a new study led by Australian marine scientists has found. ...> Full Article |
Cornell researchers have discovered that in the battle of the sexes, African electric fish couples not only use specific electrical signals to court but also engage in a sort of dueling "electric duet."
...> Full Article
 | A team of researchers from McGill University and the Smithsonian Tropical Research Institute (STRI) has provided the first example of how colour patterns on a coral reef fish species can drive its evolution into many distinct species. ...> Full Article |
 | The medaka fish (Oryzias latipes), a popular pet in Japan and model organism in the
laboratory, has had its genome sequenced. The data, reported in this week's Nature, offer
novel insights into vertebrate genome evolution. ...> Full Article |
 | Long before animals with limbs (tetrapods) came onto the scene about 365 million years ago, fish already possessed the genes associated with helping to grow hands and feet (autopods) report University of Chicago researchers in the May 24, 2007, issue of Nature. ...> Full Article |
 | If you go fishing for Arctic char you may end up catching distinctly different-looking individuals although they were all caught in the same lake. Similarly, whitefish, threespine stickleback, and some sunfishes also display quite discrete groups living in the same lakes but utilizing different food resources in order to survive. ...> Full Article |
 | Before fish began to invade land, about 365 million years ago, they had some big problems to solve. They needed to come up with new ways to move, breathe, and eat. ...> Full Article |
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