When do snakes start to hibernate? Is it mostly based on outdoor temperature? It’s getting down to the 40s F where I am and I’ve also noticed the lizards have disappeared
(Small terminology note: snakes don't hibernate, they brumate! Brumation is essentially the reptile version of hibernation but there are some small but important differences. Brumating snakes do not sleep the entire time, unlike hibernating mammals, and may wake up even if conditions are temporarily right for it with no ill effects. Brumating reptiles also draw upon glycogen reserves (that's stored sugar) instead of fat so it's less common for a brumating reptile to actually lose much weight.)
Brumating is entirely based on temperature! Some lizards can withstand cooler temperatures for longer, but for snakes the cutoff point when they start entering brumation is when the temperature is consistently around 65 F or lower. At those temperatures, it's too cold for reptiles to digest their food, and they are unable to warm their bodies.
100 notes
·
View notes
Ysalamir!
I am loving the ysalamir content I see, but I find it curious that so many people seem to default to giving them cat behavior. Cats are adorable, and I love them, but as someone who also adores reptiles, I’d love to see more ysalamir that are just big, fat lizards!
So what does lizard behavior look like?
I admit, I’ve spent more time with snakes than with lizards. But I’ve dealt with some, so here’s what I’ve got:
(This got... so long. Enjoy!)
Reptiles are stupid. Let’s be honest, folks, there is not much going on up in that little head of theirs. They are primarily driven by food, but many lizards may fail to recognize food if it doesn’t look and behave like what they expect.
However, reptiles are also creatures of routine: lights at night, unfamiliar handlers, unfamiliar surroundings can all be highly stressful!
Reptiles can also be curious, and may dig or escape enclosures, then run and hide.
Reptiles generally do not play the same way mammals do. They may enjoy exploring new objects in their enclosure, new scents, and new structures, but likely won’t chase after toys the way cats do.
Reptiles are cold-blooded, which means they cannot regulate their own temperature – instead, they must move to warmer places to warm up, or colder places to cool down. They’ll often find a nice, warm rock or other sunlit surface to just sit and bask.
Reptiles grow sluggish when too cold (or too hot). They move less, they eat less, they shed less often. Lizards that are too hot may take positions (standing up) to maximize airflow, find a cool place to sit, or look for water (and sit in it).
Reptiles don’t tend to see people as friends. People are either 1) large potential predators; run! Hide! Fight! 2) A Big Moving Thing that may hold food! Or might be food? Yay! Food! 3) A Big Warm Rock that moves sometimes.
Reptiles don’t generally like to be pet, but if habituated to people, likely don’t mind being pet either. Some individuals may enjoy the warmth or interaction; others may prefer not to be touched.
When lizards are stressed or spooked, they may: hiss, puff up and look big, head-bob or display dewlaps, bite at nearby targets, piss or defecate (on the offender, if possible), freeze and/or attempt to run (very fast and will jump off tall objects), attempt to hide (in small cracks they can squeeze into), etc.
Most lizard species can drop their tail if threatened or stressed. These do grow back eventually!
Lizards shed in patches, which they may rub or tear off over a period of a week or two. Don’t pull on the shed - it can tear the skin, and some animals may not wish to be handled at all. Humidity is important as it helps loosen the shed; if patches remain (a bad shed) they may need to be removed manually.
Before shedding the head, lizards shed their eye scales, which leaves them vulnerable with limited eyesight for a few days. They tend to be very skittish.
Males may be more aggressive during mating season, a few months out of the year. Females may be more passive. Some species don’t eat during this time and change their behavior to find or attract mates.
Sick reptiles generally appear lethargic. They may not eat or respond to stimuli.
Like most animals, lizard behavior is highly individual. One paper describes an iguana that sat by the cage door and raised its head for scratches, while another sat above the door and slapped researchers with its tail!
Notably, most lizards are carnivores, but ysalamir are commonly depicted like iguanas, which are herbivores, and have different behaviors. Since they don’t need to chase prey, they tend to be sluggish and spend a lot of time just sitting around.
39 notes
·
View notes
Topic of the day: lesbian lizards.
There's a species of lizards that are entirely female (they really said no boys today honey) living in North America and Mexico. So how do they make baby lizards without males?
They reproduce by parthenogenesis (and are one of the few if not the only species of animal to reproduce only by this method). Parthenogenesis is a reproduction form where the female sexual cells develop without the masculine ones (eggs undergo a chromosome doubling after meiosis, developing into lizards without being fertilized), and it can happen in insects, birds, fishes and reptiles.
The desert grassland whiptail lizard (Aspidoscelis uniparens) does this, but! The ovulation is enhanced by female-female courtship and mating (pseudo-copulation) rituals that resemble the behavior other lizards that reproduce sexually.
So they are the absolute only-female lesbian queens.
52 notes
·
View notes
https://www.reddit.com/r/BeardedDragons/comments/12xgpaj/hi_everyone_drogon_just_started_doing_this_in_his/
Apologies for the long link, and that it isn't a snake, but thoughts on this beardie's bath time behaviour?
Link for everyone - this is a video of a bearded dragon wiggling around and swimming briefly in shallow bathwater!
This is all good, this beardie is having an absolutely lovely time. Some beardies like to swim, and that's what this one is trying to do. Beardies who enjoy swimming this much might even benefit from having a deeper bath to swim in from time to time! This is a super cute video.
160 notes
·
View notes