As with any Darwinian subject, neurology is under constant evolution. This podcast for the April 2026 issue of Practical Neurology has co-editors Phil Smith and Geraint Fuller taking a look at some intriguing specimens from the neurological field. Populating the menagerie for this episode are the "reversed clock phenomenon", a new study on brain problems in retired sportspersons, a practice guide for biosimilar drugs, and a look at GLP-1 drugs. Also found inside are the "nocebo effect", radiologically isolated syndrome for multiple sclerosis identification, and a weighing up of stenting vs shunting.

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Production and editing by Brian O'Toole. Thank you for listening.