- Known from only a handful of specimens since its discovery in 1937 and feared extinct, the Albany Adder (Bitis albanica) was found alive and well—at least four specimens were—last November, in a South African location that is being kept secret to deter poachers. Because yes, poachers will collect the shit out of these snakes.
- The plan to reintroduce Timber Rattlesnakes (Crotalus horridus) to an island in the Quabbin Reservoir in Massachusetts has been suspended in the face of local opposition; the Worcester Telegram’s outdoors writer Mark Blazis is disappointed.
- Ontario Nature has announced its new and improved Ontario Reptile and Amphibian Atlas app, which isn’t so much an app as it is a mobile website that supports offline data. Anyway, it’s got a field guide and lets you enter species sightings.
- Fossil snakes are generally known from their vertebrae, which makes their study a little less exciting to the lay reader than dinosaurs; still, it’s rather exciting that a new extinct species, Zilantophis schuberti, has been described from a fossil found in eastern Tennessee. “Zilantophis bore uniquely broad wing-shaped projections on the sides of its vertebrae. In life, these were likely attachment sites for back muscles. These features are what inspired the name of the new genus, derived from Zilant, a winged serpent in Tatar mythology.”
[Journal of Herpetology]
- Blind snakes (Scolecophidia) are tiny, secretive and easily overlooked; even so, there’s something of a blind snake renaissance going on, says Andrew Durso. “I recently noticed, much to my surprise, the the number of described species of blindsnakes has doubled in the last 13 years, from 305 in 2004 to 599 today; that’s 16.5% of all snakes! There are certainly many undiscovered species of blindsnakes, so it’s likely that their numbers will continue to grow.”
- A fascinating article in The New York Times Magazine from Daniel Engber that looks at the increasing use of the Burmese Python (Python molurus bivitattus) as a laboratory animal, and the possibility that its extraordinary digestive system—which has to flip from inactive to a 50,000-calorie meal all at once—may help find a cure for diabetes.
Category: Reptiles & Amphibians (Page 2 of 3)
So our 10-year-old female Okeetee corn snake, variously known as Little Miss Adorable, LMA and Ella Mae, started laying infertile eggs yesterday.
This is not unheard of — our female bullsnake, Lucy, and our leucistic Texas rat snake, Snowflake, have done this once or twice — so while we were surprised (February is really out of season for this sort of thing), we were not completely unprepared. Egg binding can be a thing, so we threw together a nesting box full of sphagnum and vermiculite, and then a larger box of sphagnum and vermiculite because her cagemate, Pretzel, wanted to curl up in there as well.
This does explain her recent behaviour: missing the last two or three meals (unheard of for a corn snake, except when gravid), restlessly pacing her cage and upending the furniture (much to the annoyance of Pretzel, who is twice her age and much more seclusive).
Five eggs so far, all infertile — she’s never so much as shared a cage with a male snake, and for good reason: corn snakes are the second-friskiest snake species known to captive husbandry. This is much to the annoyance of the (aptly named) Trouser, the male corn snake who lives in the next cage, who I suspect has been slowly going nuts about living next to two female snakes for years. But when I kept Pretzel and Trouser in the same cage, she would hollow herself out laying eggs that turned out to be infertile. The only surefire way to keep corn snakes from breeding is to segregate them by sex.
All things considered, infertile eggs — or, in the case of live-bearing snakes like garter snakes, egg masses — are a pretty rare occurrence. Caught us off guard this time, it did.
Update, Feb. 17: As of yesterday, LMA has laid an additional six eggs, for a total of eleven. Her backside looks appropriately hollow and she’s entered her post-egg-laying shed cycle, so we can stand down with respect to the risk of egg binding. There’d been some worry about that for a while: at one point it looked like had an egg just above the vent that was not going to pass.
Tim Jones, a retired zoo director, has been hand-feeding the Diamond-backed Water Snakes (Nerodia rhombifer) that live in his private pond. The snakes have become so habituate to his presence that they’re comfortable taking food off his tongs. It doesn’t hurt that water snakes are rather food-motivated (which is a polite way of saying they’re extreme gluttons). You’ll note in the above video, along with shorter videos here and here, that they’re strongly directed by scent: if your fingers or pants smell like fish, it is by snake reasoning fish. Nom.
Now, Jones points out that this is a pond on private property; feeding wild animals is usually a no-no for very good reasons. You’d think that there would be little harm in habituating water snakes to human contact, or having them associate humans with food, and in a perfect world there wouldn’t be. It’s just that very few people would see an approaching water snake as friendly. Thwack. The end.
Some people might be surprised at the idea of tame water snakes, but I’m not. At one point, as some of you may remember, I kept three of them: two Banded Water Snakes (Nerodia fasciata) and a Northern Water Snake (N. sipedon), the latter under a provincial licence. They had insanely voracious appetites, but they were no less tame than any of my other snakes, and I put them to use in educational displays, where they wigged out people who believed water snakes were aggressive.
Basically, they’re just big garter snakes.
But mine were all born in captivity. That matters. It’s not reasonable to expect a wild animal to be friendly or tame: most will assume that a creature a hundred times their size is a threat to them. A snake has no idea that people are scared of it, or that being friendly and non-threatening toward people is a reasonable survival strategy. That’s counterintuitive.
Wild water snakes are bitey because they’re large enough for it to be a worthwhile defence strategy; smaller snakes of the same family, like brown and red-bellied snakes (Storeria), never bite, because there’s no point in doing so. Garter snakes are somewhere in between: some do, some don’t — it depends on the species, the individual and the circumstances.