Slamming heads together to impress someone: why does this happen? Let’s ask Dr. Nicole Ackermans, whose current job involves receiving sheep heads and painstakingly counting damaged neurons from headbutting concussions. The Neuropathology episode last week gives all the concussion basics, but this one turns the microscope away from accidents and points it right at intentional behaviors in nature, from bighorn sheep to musk oxen, goats, woodpeckers, and some other animals that will freak you out. Also: questionable helmet ideas and horny hogs.

Get all the background on head trauma, including my recent brainwhack concussion

Check Dr. Nicole Ackerman's website and Twitter

A donation was made to Society for Women's Health Research

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Sound editing by Jarrett Sleeper of MindJam Media

Transcripts by Emily White of The Wordary

Website by Kelly R. Dwyer

Theme song by Nick Thorburn

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