Wolves, but not dogs, are prosocial in a touch screen task

Wolves appear to be more inclined than dogs to be generous with their pack mates. When given the choice, wolves deliver food to their friends, even if they don’t benefit themselves.

Dale et al

Wolves lead and dogs follow, but they both cooperate with humans

In their cooperation with human partners, dogs follow the behaviour of the humans while wolves lead the interaction: they are more independent.

Range et al

Carrion – It’s What’s for Dinner: Wolves Reduce the Impact of Climate Change

Includes mathematical activity for High School students

Constible et al

Carnivoran hunting style and phylogeny reflected in bony labyrinth morphometry

Research showed the earliest known dog species, Hesperocyon gregarius, likely pounced on its prey, just like foxes and coyotes.  Scientists also determined the largest known dog species, Epicyon haydeni, were the size of grizzly bears. As faster species emerged, their inner ears grew in size. Larger inner ears help cheetahs, lions and wolves keep their head stable while moving at high speeds.

Schwab et al

Wolf (Canis lupus) Generation Time and Proportion of Current Breeding Females by Age

These findings will be useful in modeling wolf population dynamics and in wolf genetic and dog-domestication studies.

Mech et al

Do wolves hunt freshwater fish in spring as a food source?

Research on wolf packs at Voyageurs National Park in northern  Minnesota challenges the conventional wisdom on wolves: Their diets are a lot more varied than scientists previously thought.  Researchers with the Voyageurs Wolf Project, a collaboration between the park and the University of Minnesota, have documented wolves hunting freshwater fish as a seasonal food source.  Image courtesy  Voyageurs Wolf Project

The Eastern Wolf – What we know & do not know


Scientist at work: Identifying individual gray wolves by their howls

Angela Dassow, Carthage College

Compensatory mortality in a recovering top carnivore: wolves in Wisconsin, USA (1979–2013)

Stenglein et al

Factors affecting the elicitation of vocal responses from coyotes Canis latrans

Petroelje et al

Intensity of Territorial Marking Predicts Wolf Reproduction: Implications for Wolf Monitoring

Llaneza et al

Environmental and Intrinsic Correlates of Stress in Free-Ranging Wolves

Molnar et al 

Decoding Group Vocalizations: The Acoustic Energy Distribution of Chorus Howls Is Useful to Determine Wolf Reproduction

Palacios et al

A Comparison of Facial Color Pattern and Gazing Behavior in Canid Species Suggests Gaze Communication in Gray Wolves (Canis lupus)

Ueda et al

Sedentary but not dispersing wolves Canis lupus recolonizing western Poland (2001–2016) conform to the predictions of a habitat suitability model

Aim: To compare predictions of the habitat suitability model (HSM) for wolves Canis
lupus in Poland with actual wolf distribution in western Poland after 15 years of

Nowak et al

Yellowstone Science – Motherhood

Wolves have a brief life history relative to other large carnivores, including early first reproduction, high fecundity, rapid development, and relatively short lifespans.

Was that a Wolf or Coyote?

Distinguishing Between Coyotes, Wolves, and Dogs. Wolf pups in mid-summer and fall can closely resemble coyotes, and it can be nearly impossible to tell
them apart.

Attempt to Cross-Foster Gray Wolf, Canis lupus, Pups into Another Wolf Pack

We attempted to cross-foster four 18-19 week-old Gray Wolf (Canis lupus) pups into another Wolf pack 182 km from their natal pack territory. The pup introduction was the result of depredation control on a farm in northwestern Wisconsin. Three pups died within 14 days of release. A fourth pup survived along the edge of the new pack territory over winter, dispersed in the spring, joined or formed a new pack and was captured on a depredation complaint four years later.

Top predators constrain mesopredator distributions

Wolves and other top predators need large ranges to be able to control smaller predators whose populations have expanded to the detriment of a balanced ecosystem.

Competition between apex predators? Brown bears decrease wolf kill rate on two continents

Tallian et al


Clinchy et al 2013


Coyotes, dingoes and wolves are all dogs, as intelligent and loyal as our familiars. Our treatment of them is unconscionable. As a rule, apex predators are the bosses of nature’s regulatory system, promoting ecological richness and stability by suppressing irruptions of prey and smaller predators. ‘They allow the number and variety of species occupying any given area to be higher,’ said Wallach, now a research fellow at the University of Technology Sydney and co-founder with O’Neill of the Dingo for Biodiversity Project. ‘In a nutshell, large predators make the world green.’

Mortality Patterns and Detection Bias from Carcass Data

Stenglein et al

Social living mitigates the costs of a chronic illness in a cooperative carnivore

Ecology Letters, 2015

Wolves Have Local Howl Accents

Scientific American, Jason G Goldman, April 2016

Wolves adapt territory size, not pack size to local habitat quality

Kittle et al 2015

Wolf Paw Print