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four wolves cluster together in the snow next to a tree. one wolf at the front looks out into the distance.
Toxoplasma-Infected Wolves More Likely to Lead Packs, Study Finds
The parasite appears to make infected wolves less risk-averse, potentially influencing the behavior of packs.
Toxoplasma-Infected Wolves More Likely to Lead Packs, Study Finds
Toxoplasma-Infected Wolves More Likely to Lead Packs, Study Finds

The parasite appears to make infected wolves less risk-averse, potentially influencing the behavior of packs.

The parasite appears to make infected wolves less risk-averse, potentially influencing the behavior of packs.

wolves
a black wolf and a gray wolf follow a third gray wolf, whose head is tilted back to watch, as they trot through a snowy background, with light colored, barren trees in the background.
Black and Gray Wolf Pairings Stem Disease, Stabilize Population: Study
Katherine Irving | Oct 20, 2022 | 4 min read
The black fur allele has fitness costs but also confers higher immunity against canine distemper virus, making mix-and-match mating key to population survival.
tibetan mastiff with ghostly wolves in the background
The Extinct Species Within
Christie Wilcox, PhD | Aug 6, 2021 | 10+ min read
The genomes of living animals are littered with DNA from long-gone relatives, providing a lens on evolution, past extinctions, and perhaps even solutions to agricultural problems.
A gray wolf (Canis lupus) stands in a forest, with the background blurred.
Bill to Greatly Expand Wolf Hunting in Idaho Heads to Governor
Amanda Heidt | Apr 28, 2021 | 3 min read
If signed, the law would boost funding for independent contractors to kill wolves and would allow for more than 90 percent of the population in the state to be taken by hunters.
Gray Wolf Reintroduction in Colorado Encounters Federal Kerfuffle
Lisa Winter | Nov 18, 2020 | 2 min read
This month, voters in the state approved the predators’ reintroduction, but the species’ recent delisting as an endangered species at the federal level binds up available funding.
Image of the Day: Protodogs
Amy Schleunes | Mar 4, 2020 | 2 min read
An analysis of microwear patterns in fossilized canid teeth supports the theory that early dogs and wolves had distinct diets.
Image of the Day: Himalayan Wolves
Amy Schleunes | Feb 25, 2020 | 1 min read
The top carnivores in the high-altitude regions of Asia are uniquely adapted to life in low-oxygen environments.
wolf pup
Image of the Day: Wolves Playing Fetch
Amy Schleunes | Jan 17, 2020 | 2 min read
A new study shows wolf pups responding to vocal encouragement from humans.
dog eyebrow sad face puppy dog look compared to wolf muscle stronger thicker domestication
Domestication Might Have Sculpted Eyebrow Expressions in Dogs
Chia-Yi Hou | Jun 18, 2019 | 2 min read
Dogs have stronger facial muscles compared to wolves, giving them the sad or “puppy dog eyes” look.
DNA of Red Wolves, Once Gone from the Wild, Discovered in Texas Pack
Carolyn Wilke | Jan 14, 2019 | 2 min read
The wild population of the species was declared extinct almost 40 years ago, but now researchers have found their genes in a pack of canines near the Gulf coast.
Congress Considers Endangered Species Act Amendments
Jef Akst | Sep 27, 2018 | 2 min read
Opponents of the proposal call the changes a “wildlife extinction package.”
Wolf-like Animal Baffles Montana Scientists
Jim Daley | May 29, 2018 | 2 min read
Specialists from the state’s Department of Fish, Wildlife and Parks are working to determine what creature a rancher shot and killed.
The Breeds of Guard Dogs that Best Protect Livestock: Study
Jim Daley | Mar 12, 2018 | 2 min read
Preliminary results from a USDA study reveal that imported guard dogs outperform those traditionally used in the U.S. to fend off wolves and coyotes.
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