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Africanized bee
Africanized bees, also known as killer bees, are hybrids of the African honeybee with various European honeybees descended from 26 Tanzanian queen bees accidentally released in 1957 in Southern Brazil from hives operated by biologist Warwick E.
Note: The above text is excerpted from the Wikipedia article "Africanized bee", which has been released under the GNU Free Documentation License.
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May 17, 2024
May 15, 2024 — What makes the oldfield mouse steadfastly monogamous throughout its life while its closest rodent relatives are promiscuous? The answer may be a previously unknown hormone-generating cell. Scientists discover the cells and hormones that inspire mice ...
May 15, 2024 — The ability to regulate body temperature, a trait all mammals and birds have today, may have evolved among some dinosaurs early in the Jurassic period about 180 million years ago. The new study looked at the spread of dinosaurs across different ...
May 2, 2024 — A wild orangutan was observed applying a plant with known medicinal properties to a wound, a first for a wild ...
Apr. 29, 2024 — It has long been thought that meat played an important role in the diet of hunter-gatherers before the Neolithic transition. However, due to the scarcity of well-preserved human remains from Paleolithic sites, little information exists about the ...
Latest Headlines
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May 17, 2024 — The sweet-taste receptor might be the first stop in a metabolic surveillance system for sugar. The receptor is also expressed in certain intestinal cells, where it may facilitate glucose absorption ...
May 17, 2024 — Scientists have discovered that a protein responsible for the synthesis of a key plant material evolved much earlier than suspected. This new research explored the origin and evolution of the ...
May 17, 2024 — A lack of detailed record-keeping in clinics and emergency departments may be getting in the way of reducing the inappropriate use of antibiotics, a pair of new studies suggests. In one of the ...
May 17, 2024 — Marine microbes control the flux of matter and energy essential for life in the oceans. Among them, the bacterial group SAR11 accounts for about a ...
May 17, 2024 — Plants have special corrective molecules at their disposal that can make retrospective modifications to copies of genes. However, it would appear that these 'Tipp-Ex proteins' do not have permission ...
May 17, 2024 — If fruit fly wings do not develop into the right shape, the flies will die. Researchers have learned how fly embryo cells develop as they need to, opening a window into human development and possible ...
May 17, 2024 — The spiny legged 308-million-year-old arachnid Douglassarachne acanthopoda was discovered the famous Mazon Creek ...
May 17, 2024 — An HIV vaccine candidate triggered low levels of an elusive type of broadly neutralizing HIV antibodies among a small group of people enrolled in a 2019 clinical ...
May 16, 2024 — Researchers have developed a method to investigate sperm whale communication by determining their vocal style, finding that groups living in close proximity can develop similar styles to each ...
May 16, 2024 — Many people are concerned about residues of chemicals, contaminants or microplastics in their food. However, it is less well known that many foods also contain toxins of completely natural origin. ...