Neil Balchan is upset, and so am I. The garter snake researcher visited a wintering den where he was doing field research only to discover that dozens of harmless red-sided garter snakes had been beaten and butchered at the site. CBC News has more.
Here’s TVO on the fragile state of the eastern hognose snake in Ontario.
Tiger keelback snakes are both venomous (it’s a rear-fanged colubrid) and poisonous, thanks to the toads they feed on. The snakes store the toad toxins in their nuchal glands. But do they know they’re packing toad toxins? According to a new study, yes: the snakes’ defensive behaviour changes depending on the toxicity of their diet. [Journal of Comparative Psychology]
Sean Graham has some advice for field herpers: instead of spending money and effort on finding rare species for your life list, they should spend that on field work that might actually do some good. “Imagine if instead of trying to find their lifer Pigmy Rattlesnake in Apalachicola National Forest, they instead went looking for them in central Alabama where records are few and patchy? If instead of herping for fun, everyone made their herping count?”1
Using the Internet to identify snakes is definitely a thing; I’ve gotten my share of requests. Sierra, the Sierra Club’s magazine, looks at how the Snake Identification Facebook group does the job. Turns out the challenges the group faces are as much about social dynamics—dealing with frivolous requests, not attacking people for killing snakes—as they are scientific.
Pollution is turning sea snakes black. The Turtle-headed Sea Snake (Emydocephalus annulatus) normally has a banded pattern (see above), but individuals found in polluted waters around New Caledonia are increasingly melanistic. It’s a phenomenon called “industrial melanism”: melanin tends to bind to metal ions of trace elements like arsenic and zinc; melanism and an increased shed cycle allows these snakes to rid themselves of toxic metals. [Current Biology]
Speaking of sea snakes, say hello to the Yellow Sea Snake (Hydrophis platurus xanthos), a newly discovered subspecies of the Yellow-bellied Sea Snake that is found in the warm, turbulent, anoxic waters of Golfo Dulce, off the Pacific coast of Costa Rica [Zoo Keys]
And what is almost certainly the weirdest reptile story ever to come to my attention: a story about turtle boners. No wait, it’s better than you think! It’s really difficult to figure out a turtle’s sex. So researchers came up with the idea of—oh boy—using a vibrator to stimulate the turtle: male turtles would get an erection. So: turtle boners. In the study, the method had a 100 percent accuracy rate. Because: turtle boners. Science is awesome. That is all. [Acta Herpetologica]
Atlas Obscura on the comeback of the only remaining rhyncocephalian, the tuatara (Sphenodon). Breeding programs having more tuataras than they know what to do with is a nice problem to have. (I know people who, through zoo connections, have handled tuataras. I’ve never so much as seen one in the flesh.)
Kenya has banned the export of various snakes, including the African Rock Python (Python sebae), due to the impact of collecting and poaching on wild populations. I would have thought that there wouldn’t be much demand, relatively speaking, for the large and nasty African Rock Python, but they’ve been collected so much that, like overfished species, their full-grown size in the wild has diminished. [via]
A plan to reintroduce the Timber Rattlesnake (Crotalus horridus) to an island in the Quabbin Reservoir in Massachusetts is running into opposition from local residents, though the island is a more isolated and remote reintroduction site than just about any other alternative. [via]
The Mexican Garter Snake (Thamnophis eques) is endangered in Arizona, so residents presumably still can’t shoot it. It was believed to have disappeared from the Colorado River system, but it was recently spotted near Lake Havasu City, which has wildlife officials scratching their heads a bit. [via]