Intrepid Norwegian explorers discovered the Antarctic icefish, a marvel of evolution, while venturing to an island at the bottom of the Earth in 1927.
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A handful of species have learned how to survive in freezing climates. To do so, the animals must counteract the damaging effects of ice crystal formation, or keep from freezing altogether. Here are a few ways they do it.
Animals and plants come in a dizzying array of colors. Current research is cracking into the remarkable structures behind nature's artistic display.
Salinella salve, an organism described as a single layer of cells, ciliated on both inner and outer surfaces and surrounding…
Shortly after a rat infested supply ship ran aground in Lord Howe Island off the east coast of Australia in 1918, the newly introduced mammals wiped out the island's phasmids—stick insects the size of a human hand. Ever since, phasmids have been cons
It’s a well-known story: The peppered moth’s ancestral typica phenotype is white with dark speckles. In the decades following the Industrial Revolution, a new, soot-colored form, known as carbonaria, flourished and displaced the typica moths in the h
Telomeres are repetitive, noncoding sequences that cap the ends of linear chromosomes. They consist of hexameric nucleotide sequences (TTAGGG in humans) repeated hundreds to thousands of times. Telomeres protect the protein-coding sequences of DNA on
A transition-state mimic has the power to bind an enzyme at its tipping point as strongly as any available inhibitor and more strongly than most, preventing enzymatic activity. In order to replicate the structure of an enzyme’s transition state, whic
Vitamin D has a variety of actions in the body. It binds to the vitamin D receptor (VDR), which then binds to the retinoid X receptor (RXR) and activates the expression of numerous genes. Through this mechanism, vitamin D promotes calcium absorption
In fewer than 15 years, nanomedicine has gone from fantasy to reality.
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