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Foundational definitions with no assumed scientific background.
PONY Library
Build understanding, one idea at a time.
The living Peppy Pony reference library: concise, connected, sourced, and organized by audience and evidence.
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Mechanisms, comparisons, and field guides when you are ready.
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Selected reading
Begin with the foundations.
What Is a Peptide?
The foundational definition behind peptide biology and research.
What Is a Receptor?
A plain-English guide to receptors, binding, and biological signaling.
What Does Half-Life Mean?
A practical explanation of half-life, exposure, and common interpretation errors.