Beating the heat in the living wings of butterflies

A new study from Columbia Engineering and Harvard identified the critical physiological importance of suitable temperatures for butterfly wings to function properly, and discovered that the insects exquisitely regulate their ...

Structures in seaweed shed light on sustainability

Brown algae are not just seaweed that float in the ocean and tangle swimmers' feet—they also contains a secret. In its cell wall, brown algae hold the polysaccharide alginate, one of the most abundant carbohydrates in the ...

How cells get moving

Archaea, bacteria and eukaryotes are what biologists call the three domains of life. Of these three, archaea form an important link within the evolutionary theory. They are the direct ancestors of eukaryotes, but resemble ...

Once hidden cellular structures emerge in fight against viruses

New University of Arizona-led research has revealed the structure and function of one of bacteria's latest strategies in the fight against viruses: a fleet of highly organized enzymes that provide a rapid immune response ...

Scientists unravel mysteries of cells' whiplike extensions

Cilia, or flagella—whiplike appendages on cells—perform diverse tasks required to keep the body healthy. When cilia malfunction, the consequences can be devastating, causing a range of problems, from blindness, to lung ...

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