Mason Posner teaches anatomy and physiology, marine and vertebrate biology at Ashland University in Ohio. He does research on the evolution and function of the vertebrate eye lens and has interests in undergraduate research and teaching technology. He leads a Biology capstone course on science communication.
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Lab member presents at undergraduate research symposium

Zach Haley, a junior biology major working in my lab on the regulation of alpha crystallin expression, gave his first research poster presentation on Tuesday at Ashland University’s Undergraduate Research and Creative Activity Symposium.  This event gives students from all disciplines in the College of Arts and Sciences the opportunity to present their independent work [...]

Meet the new lab

I thought it would be appropriate to break my long hiatus from this blog with an introduction of our latest lab members.  Last time I posted we were seeing off three lab alumni to a job, graduate and professional schools.  But the lab is full again.

From left to right in the photo (with a short [...]

Lab graduates move on

Former lab members Jackie Skiba, Phillip Wages and Amy Drossman at a 2009 vision conference in Columbus, Ohio

Three students that made significant contributions to the lab have graduated in the past two years and are starting exciting careers.  Jackie Skiba graduated from Ashland University in 201o not certain on what direction she wanted to [...]

Lab member wins national Pfizer travel award

Phillip Wages, an undergraduate research student in my lab, was recently awarded one of only five national awards from Pfizer to present his research at this year’s annual Society of Toxicology meeting in Washington D.C..  Phillip went to the SOT meeting last year as part of a competitive undergraduate program, but this year Pfizer will [...]

A new cryostat added to the lab

Over the last three years my lab has been using the zebrafish as a model for studying the effects of a diverse group of lens proteins called crystallins on lens development.  You can read more about the evolution of these lens proteins in a previous post.  We just added a new tool to the lab [...]

The lab heads to ARVO

My lab topped off a great academic year with a trip to Fort Lauderdale, Florida for the ARVO vision research meeting.  This was actually my first time bringing undergraduate students to this meeting.  Jackie Skiba and Amy Drossman did a fantastic job presenting their research on thermal adaptation in fish lens alpha crystallins.  I heard [...]

Zebrafish used to visualize blood stem cell generation

Understanding how blood cells are formed is not only important for developing treatments against numerous diseases, but also teaches us more about the fascinating process of turning stem cells into their specialized descendants.  Recent work suggests that the initial stem cell that produces all of our blood’s formed elements (cells) comes in two flavors.  But [...]

Blood stem cells may come in different subtypes

I love showing students new research that will ultimately lead to a revision in their textbooks.  Hey, something has got to make purchasing a new edition every two to three years seem worthwhile.  And it is even more fun when these research headlines come out as we are covering that very topic in class.  A [...]

Darwin and the eye

One of the most interesting sections of Darwin’s On the Origin of Species may be his struggles with perceived perfection in nature.  In Chapter 6 Darwin confronts the organ of which William Paley would be most proud – the remarkable eye, and wonders how such a structure could have possibly evolved through his [...]

Eat fish and acidify the oceans

When teaching marine biology I warn my students that if they are there to just learn about sharks and dolphins they will be sorely disappointed, because only microscopic plankton have the biomass to really affect the oceans. Being an ichthyologist this always hurt a bit.  A recent paper in Science has restored my faith that all [...]