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yellow jacket |
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yellow jacket: see wasp wasp, name applied to many winged insects of the order Hymenoptera, which also includes ants and bees. Most wasps are carnivorous, feeding on insects, grubs, or spiders. They have biting mouthparts, and the females have stings with which they paralyze their prey. ..... Click the link for more information. . yellow jacketAny of 35–40 species (genus Dolichovespula or Vespula) of social wasps, principally of the Northern Hemisphere, named for the black bands on its yellow abdomen. They differ from other wasps in having their wings folded longitudinally when at rest. Dolichovespula species typically build exposed nests. Vespula species build concealed nests underground or in protected cavities; when a nest is stepped on, the colony may erupt in an angry, stinging swarm. Nest size varies widely; some nests can be held in one hand, whereas nests in warmer climates may weigh half a ton. |
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At 14 DPI (gulls) or 20 DPI (ducks), serum was collected from the surviving birds for serologic testing with HI and AGE and the birds were humanely killed with intravenous sodium pentobarbital (100 mg/kg bodyweight). Unlike horsemeat from slaughterhouses, which can also be made into dog food, horse carcasses laced with sodium pentobarbital are poisonous. Rats were euthanized with sodium pentobarbital ([greater than or equal to] 100 mg/kg, ip). |
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