Coywolves, coyote-wolf hybrids, are prowling Rock Creek Park and D.C. suburbs

Farley probably saw a coywolf — a coyote-wolf hybrid — says Javier Monzon, a genetics researcher at Stony Brook University in New York. Regular coyotes, which are native to the American Southwest and the Great Plains area, tend to be tawny-colored and weigh around 25 pounds. Coywolves run upward of 45 pounds and come in […]

Coyote-Wolf Hybrids Have Spread Across U.S. East

Predators bred with Great Lakes wolves, then moved south, DNA shows. Hybrid offspring of coyotes and wolves have spread south along the eastern seaboard, a new DNA study confirms. Scientists already knew that some coyotes, which have been gradually expanding their range eastward, mated with wolves in the Great Lakes (map) region. The pairings created […]

Coyotes (Canis latrans) are definitive hosts of Neospora caninum

Abstract Four captive-raised coyote pups consumed tissues from Neospora caninum-infected calves. Faeces were examined from 4 days before to 28 days after infection. One pup shed N. caninum-like oocysts, which tested positive for N. caninum and negative for Hammondia heydorni using PCR tests. Coyotes are the second discovered definitive host of N. caninum, after dogs. […]