Poison frogs appear to have built their chemical defenses gradually: related frogs store low to moderate levels of diet-derived alkaloids, whilst poison frogs store more and could chemically modify them.

#SciComm by @GrrlScientist

#PoisonFrogs #Evolution #ChemicalEcology #defense https://www.forbes.com/sites/grrlscientist/2026/04/30/step-by-step-evolution-of-a-chemical-weapons-system-by-poison-frogs/