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The European hornet (Vespa crabro) is the largest eusocial wasp native to Europe. It is also the only true hornet (genus Vespa ) found in North America , having been introduced to the United States and Canada from Europe as early as 1840.
Vespa have a larger body size compared to their prey, a heavy exoskeleton to resist bee attacks, and strong mandibles and venomous sting. As concerns hornet hunting strategies, it has been demonstrated that some species such as V. tropica and V. velutina , can use both visual and olfactory cues for the long-range detection of honey bee colonies.
Samuel Cockburn (1823–1915), homeopathic surgeon and author based in Glasgow, Scotland; Hawley Harvey Crippen (1862–1910) Peter Fisher (1950–2018) John Franklin Gray (1804–1882), the first practitioner of Homeopathy in the United States; Melanie Hahnemann (1800–1878), wife of Samuel Hahnemann; Samuel Hahnemann (1755–1843), founder ...
Homeopathic name Substance Common name Aconite [1] Aconitum napellus: Monkshood, monk's blood, fuzi, wolf's bane Aesculus hippocastanum [1] Aesculus hippocastanum: Horse-chestnut Allium cepa [1] Onion: Aloeaceae [2] Aloe succotrina: Aloe: Arnica [3] Arnica montana: Leopard's bane Baptisia [1] Baptisia tinctoria: Wild indigo, horseflyweed ...
One unique aspect in this species is that it is a social parasite of Vespa crabro and sometimes Vespa simillima. The queen of Vespa dybowskii takes over the nest of the initial species, and somehow induces the workers to raise her own brood. [2] Eggs of V. dybowskii may survive in foreign species nests partly due to being chemically transparent ...
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Homeopathy is a controversial topic in complementary medicine research. A number of the key concepts of homeopathy are not consistent with fundamental concepts of chemistry and physics. For example, it is not possible to explain in scientific terms how a preparation containing little or no active ingredient can have any effect.
Even though the homeopathic preparations are often extremely diluted, homeopaths maintain that a healing force is retained by these homeopathic preparations. [34] Modern advocates of homeopathy have proposed a concept of " water memory ", according to which water "remembers" the substances mixed in it, and transmits the effect of those ...