Herd immunity, when a threshold proportion of a population becomes immune to a disease-causing organism, reducing or stopping further transmission, is very much in the news. Avian cholera much less so. But there is an intersection ...
Plants & Animals
Mar 2, 2021
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Last winter, government agencies killed one third of Yellowstone National Park's bison herd due to concerns about the possible spread of a livestock disease to cattle that graze in areas around the park. Such drastic measures ...
Jan 12, 2009
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In summer 2021, Badlands National Park was home to a healthy and growing population of Rocky Mountain bighorn sheep, with approximately 300 total among the three herds. Then in August, Paul Roghair, lead biological science ...
Ecology
May 22, 2024
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Despite assurances from the federal government that bird flu will be eradicated from the nation's dairy cows, some experts worry the disease is here to stay.
Plants & Animals
Jul 1, 2024
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A baby giraffe has died of a broken neck at Zoo Miami, zoo officials said.
Plants & Animals
Mar 19, 2024
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