As of 2021, the American Society of Mammalogists has recognized 2,277 different species of rodents, making up 35% to 40% of all mammal species on the planet, depending on which authority you talk to.

One group of mice easily outnumbers all other native, North American rodents in numbers of species and widespread distributions throughout North America. They are collectively referred to as deer mice ...

SAN DIEGO — Three deer mice collected during routine monitoring near Mount Laguna earlier this week have tested positive for hantavirus, according to county health officials. Hantavirus, which is a ...

SAN DIEGO COUNTY, Calif. — A deer mouse collected in routine monitoring Oct. 22 at the Los Vaqueros Group Horse Campground in Cuyamaca Rancho State Park has tested positive for the potentially deadly ...

SAN FRANCISCO (Reuters) - Yosemite National Park has begun trapping and killing deer mice whose growing numbers may have helped create the conditions that led to a hantavirus outbreak that has ...

A deer mouse collected near Mount Laguna last month has tested positive for the potentially deadly hantavirus, county officials announced Tuesday. The sample was collected Aug. 24 during routine ...

For the first two-thirds of November, the month felt more like that of October. Temperatures were much above normal; we recorded 50 degrees or warmer during 12 of the first 18 days. And so, we had no ...

A deer mouse collected during routine monitoring from a rural area near Boulevard has tested positive for the potentially deadly hantavirus, it was announced Thursday. The mouse was collected in ...

Three deer mice collected near Mount Laguna tested positive for the potentially deadly hantavirus, county officials announced this week. The sample was collected Wednesday during routine monitoring, ...