Heavy sleepers: elephants on epic trek take nap

A herd of wild elephants in southwestern China have been captured on camera taking a breather from a 500-kilometre march of chaos that has caused more than $1 million in damage.

How Arctic sea ducks develop herd immunity from avian cholera

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 ...

Reducing transmission risk of livestock disease

The risk of transmitting the livestock virus PPRV, which threatens 80 percent of the world's sheep and goats, increases with certain husbandry practices but not herd size. A new study, led by researchers at Penn State, investigated ...

China reports progress in swine fever vaccine trials

A vaccine developed in China for African swine fever, which devastated the country's pig herd and caused pork prices to soar, is progressing smoothly, according to results reported on Wednesday.

Caribou migration linked to climate cycles and insect pests

Caribou, the North American cousin of reindeer, migrate farther than any terrestrial animal. They can cover thousands of miles as they move between winter feeding grounds and summer calving grounds. But many caribou herds ...

Time ticks away at wild bison genetic diversity

Evidence is mounting that wild North American bison are gradually shedding their genetic diversity across many of the isolated herds overseen by the U.S. government, weakening future resilience against disease and climate ...

Mongolian mining boom threatens traditional herding

Exploring the vastness of Gobi Desert in the 13th century, Marco Polo proclaimed it to be filled with "extraordinary illusions." Today, Oyu Tolgoi, one of the world's largest copper-gold mines, rises among Mongolia's traditional ...

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