Traffic noise stresses out frogs, but some have adapted

Frogs from noisy ponds near highways have altered stress and immune profiles compared to frogs from more quiet ponds—changes that reduce the negative effects of traffic noise on the amphibians. According to a new study, ...

Scientists study puncture performance of cactus spines

Beware the jumping cholla, Cylindropuntia fulgida. This shrubby, branching cactus will—if provoked by touching—anchor its splayed spines in the flesh of the offender. The barbed spines grip so tightly that a segment of ...

NASA probes 'drug-free' policies, safety at SpaceX, Boeing

The US space agency has ordered a sweeping safety review of operations and workplace culture, including drug-free policies, at Boeing and SpaceX, two companies working to send astronauts to space, US media said Tuesday.

Bots actually target and pursue individual influencers

New research co-authored by assistant research professor and associate director of Informatics at the University of Southern California Department of Computer Science, Emilio Ferrara, looks at "social hacking" over social ...

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