By Herp News
[dropcap]W[/dropcap]hen Dale McGinnity rushed to the Nashville Zoo at 3 a.m. one morning in 2011, it was to witness the culmination of a six-year effort. One of the zoo’s eastern hellbenders (Cryptobranchus alleganiensis alleganiensis) was finally laying eggs. These giant salamanders, along with the other hellbender subspecies, the Ozark hellbender (C. a. bishopi), can grow to over two feet long, making them North America’s largest salamander species by far. But both subspecies are rapidly disappearing from the wild, and scientists were scrambling to figure out how to breed the animals in captivity as a way to replenish wild populations. McGinnity and his colleagues immediately got to work, artificially fertilizing the eggs with sperm from male hellbenders. The scientists knew what to thank for these small, slimy bundles of joy: four days earlier, McGinnity had injected the zoo’s female hellbenders with a new compound, essentially a love potion for amphibians that causes them to mate or to release their eggs or sperm. It was designed specifically for species that were reluctant to breed in captivity. Just call it “Cupid’s syringe.” The elixir in question, called Amphiplex, was concocted by Vance Trudeau at the University of Ottawa. Originally a fish endocrinologist, Trudeau felt compelled to redirect his expertise in the early 2000s when reports of startling drops in amphibian populations started to roll in from around the world. “I’m an endocrinologist, I know a lot about spawning,” he said to himself at the time. “Why don’t I try to do something?” [caption…
…read more
Read more here: herpetofauna.com
No products found.












