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390-million-year-old scorpion fossil -- biggest bug known
The gigantic fossil claw of an 390 million-year-old sea scorpion, recently found in Germany, shows that ancient arthropods - spiders, insects, crabs and the like - were surprisingly larger than their modern-day counterparts.   view more (2007-11-26)

New 150 Million-Year-Old Crab Species Discovered
Researchers from Kent State University and the University of Bucharest, Romania, have discovered a new primitive crab species Cycloprosopon dobrogea in eastern Romania. Previously unexamined, these ancient crabs from the Prosopidae family existed more than 150 million years ago during the Jurassic... view more (2007-10-18)

How does one sex grow larger than the other?
Why are males larger than females in some animal species (such as most mammals), females larger than males in others (such as most insects), and why are the sexes alike in yet other species (such as several birds)?   view more (2007-01-30)

Steep oxygen decline halted first land colonization by Earth's sea creatures
Vertebrate creatures first began moving from the world's oceans to land about 415 million years ago, then all but disappeared by 360 million years ago.   view more (2006-10-24)

Birds migrate together at night in dispersed flocks, new study indicates
A new analysis indicates that birds don't fly alone when migrating at night. Some birds, at least, keep together on their migratory journeys, flying in tandem even when they are 200 meters or more apart.   view more (2008-07-08)

Coding for arthropods-what's so special about insects and spiders?
The central dogma of molecular biology is that DNA makes RNA makes protein. This relies on a specific underlying code which relates given triplets of RNA nucleotides into specific amino acids.   view more (2006-04-25)

K-State researchers study gene regulation in insects
Susan Brown, an associate professor of biology at Kansas State University, is interested in how evolution generates so much diversity in insects shapes and forms.   view more (2006-04-28)

Chickadee, nutchatch presence in conifers increases tree growth, says CU-Boulder study
Chickadees, nuthatches and warblers foraging their way through forests have been shown to spur the growth of pine trees in the West by as much as one-third, according to a new University of Colorado at Boulder study.   view more (2007-08-02)

Fossilised Embryos - 500 Million Years Old
Evidence from fossilised embryos of worm-like creatures that lived 500 million years ago shows that embryos developed then in much the same way as their living relatives do today. The implications of this remarkable discovery, reported in this week's issue of Nature, is that embryological processes... view more (2004-01-12)

Optical brighteners for bioinsecticides
Optical brighteners are a valuable component for bioinsecticide formulae based on baculovirus. These substances enhance their insecticidal capacity at the same time as they do not favour the development of resistance of the insects to these viruses, nor do they increase the probability that the... view more (2004-09-06)

Ancient predator had strongest bite of any fish, rivaling bite of large alligators and T. rex
t could bite a shark in two. It might have been the first "king of the beasts." And it could teach scientists a lot about humans, because it is in the sister group of all jawed vertebrates.   view more (2006-11-29)

New study rewrites evolutionary history of vespid wasps
Scientists at the University of Illinois have conducted a genetic analysis of vespid wasps that revises the vespid family tree and challenges long-held views about how the wasps' social behaviors evolved. In the study, published in the Feb. 21 Proceedings of the National Academy of Sciences, the... view more (2007-03-02)

Brown-led study rearranges some branches on animal tree of life
A study led by Brown University biologist Casey Dunn uses new genomics tools to answer old questions about animal evolution. The study is the most comprehensive animal phylogenomic research project to date, involving 40 million base pairs of new DNA data taken from 29 animal species.   view more (2008-03-06)

Earlier bites by uninfected mosquitoes boost West Nile deaths in lab mice
There's one more reason to try to avoid being bitten by mosquitoes, scientists have discovered: bites from mosquitoes that aren't infected by the West Nile virus may make the disease worse in people who acquire it later from West Nile-infected mosquitoes.   view more (2007-11-16)

Ground Spider Diversity Studied in Research Project
None of Takesha Henderson's discoveries are named Charlotte, but they are weaving a new chapter in Texas entomology. Her graduate studies at Texas A&M University have led to the discovery of 25 new spiders in Brazos County and one species found for the first time in Texas.   view more (2007-01-02)

First 'rule' of evolution suggests that life is destined to become more complex
In a study published in the Proceedings of the National Academy of Sciences researchers have found evidence which suggests that evolution drives animals to become increasingly more complex.   view more (2008-03-18)

NAU researchers chirping over discovery of new cricket genus
A Northern Arizona University doctoral candidate and a National Park Service researcher have discovered a new genus of cave cricket.   view more (2006-05-08)

Discovery of new cave millipedes casts light on Arizona cave ecology
A new genus of millipede was recently discovered by a Northern Arizona University doctoral student and a Bureau of Land Management researcher.   view more (2007-03-05)

UCR researchers show how the brain turns on innate behavior
UCR researchers have made a major leap forward in understanding how the brain programs innate behavior.   view more (2006-07-28)

3,317 and counting (the number of marine species in the Gulf of Maine)
The Gulf of Maine Program of the Census of Marine Life, with the Huntsman Marine Science Center of St. Andrews, New Brunswick, announced today the first count of known marine species in the Gulf of Maine region - more than 50% larger than previous estimates.   view more (2006-01-05)

Predicting species abundance in the face of habitat loss
Habitat loss poses the greatest threat to the survival of a species, and often precipitates the demise of top predators and wide-ranging animals, like the Siberian tiger and the orangutan.   view more (2006-09-26)

Biotech cotton provides same yield with fewer pesticides
Arizona farmers receive the same yield/acre, use fewer chemical insecticides and maintain insect biodiversity when they plant the biotech cotton known as Bt cotton, according to new research.   view more (2006-05-02)

The emerging scientific discipline of aeroecology
In the history of science and technology, there is an infrequent combination of empirical discoveries, theories and technology developments converge that make it possible to recognize a new discipline.   view more (2008-08-04)

Scientists achieve self-assembly of genetically engineered spider silk fibre in insect cells
For the first time anywhere, scientists from the Hebrew University of Jerusalem and from Germany have succeeded in producing self-assembled spider web fibres under laboratory conditions, outside of the bodies of spiders. This fibre is significantly stronger than the silk fibre made by silkworms.   view more (2004-11-23)

Researchers witness natural selection at work in dramatic comeback of male butterflies
An international team of researchers has documented a remarkable example of natural selection in a tropical butterfly species that fought back - genetically speaking - against a highly invasive, male-killing bacteria.   view more (2007-07-13)
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