What vets need to know about New World screwworm (NWS)
Jill Lopez Jill Lopez

What vets need to know about New World screwworm (NWS)

New World screwworm (NWS) is a parasitic fly that causes serious disease (myiasis) in livestock, pets, wildlife, occasionally birds, and in rare cases, people.  It is most often detected in cattle, swine, horses, small ruminants, and dogs.  Although NWS was eradicated from the United States and Central America decades ago, it has resurged and was recently detected as far north as Mexico.  In May, U.S. Secretary of Agriculture Brooke L. Rollins suspended live cattle, horse, and bison imports from Mexico through U.S. ports of entry along the southern border as an additional measure to protect U.S. agriculture.

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Unique genetic mutation underlies horses’ exceptional athleticism
Jill Lopez Jill Lopez

Unique genetic mutation underlies horses’ exceptional athleticism

For over 5,000 years, horses have played a crucial role in human history—serving as essential companions for transportation, labor, and sport. From chariots to racetracks, their unmatched stamina and strength helped shape civilizations. But what made horses such formidable athletes? New research uncovers an ancient evolutionary adaptation that gave horses the metabolic boost they needed—while protecting them from the damaging side effects of their own power.

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Scientists find the mutation that gives cats their orange fur
Jill Lopez Jill Lopez

Scientists find the mutation that gives cats their orange fur

Fukuoka, Japan—From Tama, Japan’s most famous stationmaster calico cat, to the lasagna-loving, ginger Garfield, cats with orange fur are both cultural icons and beloved pets. But their distinctive color comes with a genetic twist—most orange tabbies are male, while calicos and tortoiseshells are nearly always female. This pattern points to an unknown “orange gene” on the X chromosome, but identifying this gene has eluded scientists for decades.

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