The Zakon lab recently published a manuscirpt in BMC Biology entitield "A potential cost of evolving epibatidine resistance in poison frogs". The paper investigates how poison frogs have evolved resistance to the deadly alkaloid toxin that they accumulate in their bodies as protection against predators.
York JM, Borghese CM, George AM, Cannatella DC and Zakon HH. A potential cost of evolving epibatidine resistance in poison frogs. BMC Biology. 2023 Jun 28;21(1):144. DOI:10.1186/s12915-023-01637-8