Examining the neurotoxin from a black widow

Phobias are often irrational by nature—especially in the case of spiders, as these creatures are usually more afraid of humans than vice-versa. But: some species are a force to be reckoned with—for example, the Latrodectus ...

How smart is an octopus?

The unique brainpower of octopuses—known for their intelligence and Houdini-like escapes—has been revealed by University of Queensland researchers.

Centriole instability might contribute to some cases of microcephaly

Centrioles are cylindrical structures involved in the generation of microtubules—fibers inside of cells that form a network to provide structure and shape to cells and to mediate transport processes. In addition, centriole ...

Male giraffes are more socially connected than females

Although female giraffes have closer "friends" than male giraffes, male giraffes have more "acquaintances" than females, according to a new study by an international team that includes a Penn State biologist. The study demonstrates ...

Wired for efficiency: How methanogenic microbes manage electrons

Methanogenic archaea use sophisticated enzyme systems to live in energy-limited anoxic environments. A key mechanism for saving energy is electron bifurcation, a reaction that 'splits' the energy of a pair of electrons, making ...

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