Christopher X J. Jensen
Associate Professor, Pratt Institute

Humans arrive, other mammals shrink

Posted 27 Sep 2018 / 0

Scientific American “Mammals Shrink When Humans Migrate In” Another really cool infographic from Scientific American. What I really find interesting here is the difference between the recent arrival of humans (Australia, the Americas) and places where humans just innovated culturally (Africa, Eurasia). Those large mammals species that coevolved with our emergence as a highly-cultural species seem Read More

A Minor Post, Anthropogenic Change, Articles, Conservation Biology, Evolution, Extinction, Human Evolution, Mammals, Natural Selection

Support the mighty Bombardier Beetle’s quest to have its genome sequenced!

Posted 20 Mar 2017 / 0

A good friend and former colleague of mine, Aman Gill, now works on Bombardier Beetles. And the Bombardier Beetle is in the running for a unique award: having its genome sequenced. How will the Bombardier Beetle win this award? Well, folks, we are pretty well into the new millenium by now, so you probably have Read More

A Minor Post, Adaptation, Behavior, Convergence, Evolution, Experiments (General), Genetics, Natural Selection, Public Outreach, Science (General), Uncategorized

My personal experience that creationists gravitate to anything with even the faintest scent of scientific uncertainty (and what to do about it)

Posted 22 Dec 2015 / 0

Last month, I published a rather long review of William Provine’s last book, The “Random Genetic Drift” Fallacy. The book is pretty obscure and I knew that a lot of other evolutionary biologists had dismissed the book as being a bit on the crazy side, so in the back of my mind I was wondering whether Read More

A Major Post, Belief, Creationism, Data Limitation, Evolution, Fluidity of Knowledge, Hypothesis Testing, Natural Selection, Population Genetics, Web, WordPress

It was an honor to talk to St. Francis College!

Posted 14 Dec 2015 / 1

Last Friday (December 11th, 2015) I had the pleasure of speaking to students and faculty at Saint Francis College. I delivered a talk entitled “Highly-creative baby-breeding idea propagators: what human (re)productive choices mean for the future of our species” to an engaged and insightful audience; as this was the final week of classes, I really Read More

A Major Post, Adaptation, Behavior, Breeders, Propagators, & Creators, Cultural Evolution, Gene-Culture Coevolution, Human Evolution, Human Uniqueness, Natural Selection, Population Growth, Public Outreach, Sex and Reproduction, Social Diversity

My first “Breeders, Propagators, & Creators” talk: next Friday at St. Francis College

Posted 04 Dec 2015 / 0

Next Friday, December 11th, at 3 pm I will be delivering a talk at St. Francis College entitled “Highly-creative baby-breeding idea propagators: what human (re)productive choices mean for the future of our species“. The talk is a synopsis of a large section of my book-in-progress Breeders, Propagators, & Creators: Culture, Biology, and the Future of Human Evolution. Read More

A Major Post, Behavior, Breeders, Propagators, & Creators, Carrying Capacity, Cultural Evolution, Evolution Education, Gene-Culture Coevolution, Human Evolution, Human Uniqueness, Intrinsic Growth Rate, Memetic Fitness, Natural Selection, Parenting, Population Growth, Public Outreach, Reproductive Fitness, Sex and Reproduction, Social Diversity

Jeremy Yoder on contemporary selection for increased human height

Posted 23 Nov 2015 / 0

Social Evolution Forum “Natural Selection on Human Height Doesn’t Measure Up To Much” I agree overall with Yoder’s analysis, although it seems that he misreads the study a bit: by my reading, women’s height also had an effect on the survival of offspring, although the effect was nearly half that of men. But Yoder’s larger Read More

A Minor Post, Breeders, Propagators, & Creators, Development, Gene by Environment Interactions, Gene-Culture Coevolution, Genetics, Human Evolution, Natural Selection, Population Genetics, Web

Group phenotypic composition: implications for individuals and their groups

Posted 22 Oct 2015 / 0

Trends in Ecology & Evolution “From Individuals to Groups and Back: The Evolutionary Implications of Group Phenotypic Composition” Man, I wish that this article was written in a more accessible manner, because what it presents is important. There is a critical feedback between how the composition of groups affects individuals and how individuals affect the Read More

A Minor Post, Articles, Evolutionary Modeling, Group Selection, Multilevel Selection, Natural Selection, Phenotypic Plasticity, Population Genetics, Social Diversity

Evolution 2014: Day 0

Posted 20 Jun 2014 / 0

I started off this year’s Evolution meeting early. The conference is — at its core —  a four-day affair. But the days leading into the “official” start on Friday evening feature larger workshops aimed at building skills. I chose to attend the Experiencing Evolution workshop. Here’s what this session promised: Evolution is a key biological concept, Read More

A Major Post, Adaptation, Assessment Methods, Behavior, Coevolution, Competition, Conferences, Cooperation, Evolution, Evolution Education, Evolutionary Modeling, Genetics, Grants & Funding, Higher Education, Individual-based Models, Lesson Ideas, Multilevel Selection, Natural Selection, Phylogenetics, Population Genetics, Population Growth, Predation, Reproductive Fitness, Science in Art & Design, Sex and Reproduction, Society for the Study of Evolution, Talks & Seminars, Teaching, Teaching Tools

Evolution 2014: Cooperative data collection is more meaningful than individual data collection

Posted 20 Jun 2014 / 0

Julie Noor’s classroom activity in Drosophila breeding points out a really great “best practice” for any data collection in undergraduate laboratory exercises: if you ask students to first interpret only the data they collected, then allow them to interpret the aggregated data of the whole class, you can allow them to see the importance of sample size. Read More

A Minor Post, Conferences, Evolution Education, Lesson Ideas, Natural Selection, Population Genetics, Society for the Study of Evolution, Teaching

Evolution 2014: Students can watch fly populations evolve in a matter of weeks

Posted 20 Jun 2014 / 0

Julie Noor of Duke University shows how a very simple classroom experiment in fly breeding to the F3 generation can force students to answer the following question in the affirmative: “Have you ever seen evolution actually occurring?” It is powerful when students are able to report that they have seen “evolution in action”.

A Minor Post, Conferences, Natural Selection, Population Genetics, Society for the Study of Evolution