Categories
Research

An evolutionary experiment: when did wolves become dogs and what comes next?

When did wolves become dogs?

What evolutionary and developmental processes are involved in creating physical variation?

Is selection responsible for moulding the diversity of life?

Or does developmental bias via drive and constraint determine how animal shapes change?

Abby Drake is interested in the processes that produce macroevolution and dictate which physical appearances, evolve and which do not.

She is especially interested in learning how species evolve: What mechanisms produce enough physical or behavioural change to ensure reproductive isolation on the population level?

To this end, she studies developmental processes that lead to large modifications of morphology, using variation in vertebrate skulls to answer these questions.

Abby uses three-dimensional scan data to capture each specimen’s 3D geometry.

This type of data allows her team to look at the shape of the skull holistically using a sophisticated shape analysis called geometric morphometrics.

While she also works on cetaceans, owls and primates, this episode focuses on her extensive work examining canids: when did wolves become dogs, how have we shaped them, and where might they go in the future?

Podcast

Images

Dog vs wolf skull shapes
Dog vs wolf skull shapes

Video

A thin-plate spline warping of a wolf skull into a French Bulldog. Data are from Drake, A.G. and Klingenberg C.P. 2010.

Publications

Dr Abby Drake - When did wolves become dogs?
Dr. Abby Drake

Drake, A. G., Coquerelle, M., & Colombeau, G. (2015). 3D morphometric analysis of fossil canid skulls contradicts the suggested domestication of dogs during the late PaleolithicScientific reports5.

Drake, A. G. (2011). Dispelling dog dogma: an investigation of heterochrony in dogs using 3D geometric morphometric analysis of skull shape [PDF]. Evolution & Development, 13(2), 204-213. **If you download and open this pdf with Adobe Reader 9 or higher you can rotate and magnify the skulls in the figures.

Drake, A. G., & Klingenberg, C. P. (2010). Large‐scale diversification of skull shape in domestic dogs: disparity and modularity. The American Naturalist, 175(3), 289-301.

Drake, A. G., & Klingenberg, C. P. (2008). The pace of morphological change: historical transformation of skull shape in St Bernard dogs. Proceedings of the Royal Society B: Biological Sciences, 275(1630), 71-76. http://www.skidmore.edu/biology/faculty/ProcRSoc2008.pdf

Links

Abby Drake: ResearchGate Profile

Abby Drake on Twitter: @AbbyGraceDrake

Daily Mail (UK): 30,000 year-old fossil of the oldest dog turns out to be a wolf

CBS News: When did dogs become man’s best friend?

Biologist Drake helps answer key question in canine history: Skidmore College News

Categories
Psychology

Sam Gosling: Animal personality

Sam Gosling is a psychologist based at the University of Texas at Austin in the USA.

His research interests include social perception, new methods of data collection online and cross-species work, where he examines how animals can inform theories of personality and social psychology.

We talked with Sam about how science can help us measure animal personality traits (non-human) across a number of species, including hyenas, dogs, and even invertebrates, like squid.

Podcast

Publications

Sam Gosling discusses animal personalities
Sam Gosling

Gosling, S. D., & John, O. P. (1999). Personality dimensions in nonhuman animals a cross-species reviewCurrent Directions in Psychological Science,8(3), 69-75.

Gosling, S. D. (2001). From mice to men: what can we learn about personality from animal research?. Psychological bulletin127(1), 45.

Gosling, S. D., & Vazire, S. (2002). Are we barking up the right tree? Evaluating a comparative approach to personality. Journal of Research in Personality,36(6), 607-614.

Gosling, S. D. (2008). Personality in Non‐human AnimalsSocial and Personality Psychology Compass2(2), 985-1001.

Sinn, D. L., Gosling, S. D., & Hilliard, S. (2010). Personality and performance in military working dogs: Reliability and predictive validity of behavioral tests. Applied Animal Behaviour Science127(1), 51-65.

Links

Gosling Lab at the University of Texas, Austin


Top image via Flickr/malingering

Categories
Psychology

Animal attraction & human animal interaction: positive youth development

Dr Megan Mueller is a developmental psychologist working in the Cummings School of veterinary medicine at Tufts University (USA).

Megan’s own passion for animals led her to scientifically examine the roles they play in human health and positive development for children, families and communities.

In this episode of Human Animal Science, we speak to Megan about her recent research looking at human animal interaction and positive youth development.

Podcast

Links

Megan Mueller - Animal attraction and human animal interaction
Megan Mueller

Megan Mueller – Tufts University Profile

Publications

Mueller, M. K. (2014). Is Human-Animal Interaction (HAI) Linked to Positive Youth Development? Initial Answers. Applied Developmental Science18(1), 5-16.

Mueller, M. K. (2014). The Relationship between Types of Human–Animal Interaction and Attitudes about Animals: An Exploratory Study. Anthrozoos: A Multidisciplinary Journal of The Interactions of People & Animals27(2), 295-308.

Mueller, M. K. (2014). Human-Animal Interaction as a Context for Positive Youth Development: A Relational Developmental Systems Approach to Constructing Human-Animal Interaction Theory and Research. Human Development57(1), 5-25.

More of Megan’s publications via Google Scholar


Photo: Flickr/stuckincustoms

Categories
Training

Animal training: what’s going on?

Kate Mornement is an animal behaviourist who engages in regular ongoing professional development.

When it means interacting with beluga whales, exotic parrots, lions and gorgeous puppies, why wouldn’t she?

Tim and Mia talk to Kate to find out more about the application of learning theory across this wide range of animals, and what’s really going on in animal training.

Podcast

Links

Kate Mornement - Animal training - What's really going on?
Kate Mornement

Pets Behaving Badly website

Further reading

Chance, P. (2013). Learning and behavior. Cengage Learning. Amazon Australia | Amazon US

McGreevy, P., & Boakes, R. (2011). Carrots and sticks: Principles of animal training. Darlington Press. Amazon

Pryor, K. (1999). Dont shoot the dog. Bantam. Amazon Australia | Amazon US

Ramirez, K. (1999) Animal training: successful animal management through positive reinforcement. Chicago: Shedd Aquarium. Amazon