Bird and mammal diversity is declining with biological invasions

The introduction of invasive species leads to a decline in certain native species. A team of researchers from the CNRS and the University of Paris-Saclay has managed to show that 11% of the global phylogenetic diversity of ...

Honey bee sting: Key aspect of bee defense against hornets

Heat balling is an ingenious defense that has co-evolved to protect multiple honey bee species from hornet predators. Previous studies have shown that high temperature, increased concentration of CO2, and blockage of the ...

Destruction of murder hornets nest doesn't end threat

When scientists in Washington state destroyed the first nest of so-called murder hornets found in the U.S., they discovered about 500 live specimens in various stages of development, officials said Tuesday.

Scientists remove 98 'murder hornets' in Washington state

Workers from the state Department of Agriculture managed to destroy the first nest of so-called murder hornets discovered in the U.S. without suffering any stings or other injuries, the agency said Monday.

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Hornet

Hornets are the largest eusocial wasps; some species can reach up to 5.5 cm (2.2 in) in length. The true hornets make up the genus Vespa and are distinguished from other vespines by the width of the vertex (part of the head behind the eyes), which is proportionally larger in Vespa and by the anteriorly rounded gasters (the section of the abdomen behind the wasp waist).

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