News tagged with nervous system

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Human ancestors had tentacles

The famous Vitruvian Man drawn by Leonardo da Vinci pictures the canon of human proportions. However, humans didn't become bilaterally symmetric suddenly. There are two main points of view on the last common ...

dateApr 23, 2015 in Archaeology & Fossils
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Evolution of the back-to-belly axis

Most animals have a dorso-ventral (back-to-belly) body axis, which determines for instance the localized position of the central nervous system, dorsal in humans, ventral in insects. Surprisingly, despite ...

dateMar 18, 2015 in Cell & Microbiology
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'Blue-green algae' proliferating in lakes

The organisms commonly known as blue-green algae have proliferated much more rapidly than other algae in lakes across North America and Europe over the past two centuries - and in many cases the rate of increase ...

dateFeb 26, 2015 in Environment
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How do vertebrates take on their form?

A simple physical mechanism that can be assimilated to folding, or buckling, means that an unformed mass of cells can change in a single step into an embryo organized as a typical vertebrate. This is the ...

dateFeb 16, 2015 in General Physics
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Guarding against 'Carmageddon' cyberattacks

The potential value of turning the nation's freeways into "smart transportation systems" is enormous. Equipping the nation's concrete arteries with a nervous system of computers and sensors that directly control on-ramp signals ...

dateJun 11, 2014 in Security
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