Jacob Kubel is a man on a mission. The 36-year-old conservation scientist with the Massachusetts Division of Fisheries and Wildlife has been crisscrossing the state since late August in search of the Commonwealth’s rarest salamander -- Ambystoma opacum, aka the marbled salamander -- to document where they’re breeding and to get a feel for how the population is doing. And he only has a couple more weeks to do so before the salamanders head back underground.
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