Questions tagged [herpetology]

The study of reptiles and amphibians, and a subarea of zoology.

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How to Scale Metabolic rate and drug dosage according to Mass?

I was reading a book "Biology and evolution of Crocodilians" by Gordon Grigg and David Kirshner. And I can't understand the part about metabolic scaling no matter which method I tried I can'...
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2 votes
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How does a turtle develop inside its egg?

This is related to Cause of premature death in turtle eggs, for those interested. I have noticed that Kinosternon spp. eggs have three layers: hard outer shell white opaque membrane (like the one you ...
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Poison of the Japanese Tree Frog

The Japanese Tree Frog (Dryophytes japonica) (EN / JP) has a poison on its skin that can even make you loose your eyesight, if you touch your eyes, after touching{NOTE}. I found quite a couple of site ...
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Reptile identification - Is this a green iguana?

At first instance it looks like an iguana and since this photo was taken near the coast of Pernambuco, Brazil it could only be the green iguana, but as you can see from the photo the reptile is black. ...
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5 votes
1 answer
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Cause of premature death in turtle eggs

Context I am a hobbyist turtle breeder and I have been keeping and breeding turtles for 15 years (I have hatched turtles in the high hundredths). Long story short, few years back, my friend and I ...
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Are snake capable of love? (social bond in a male/female couple)

I'm wondering whether it has been noticed that some species of snake form male/female couples for life (or at least multiple reproduction cycles) like other types of animals do (penguins come to mind)....
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1 vote
2 answers
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What species of snake is this? It was sighted in NE New Mexico, Union County

The snake in this photograph was found injured/dead in Clayton, Union, New Mexico (USA) on 10/06/2021. I want to know if it is a juvenile bullsnake or a Chihuahuan Night Snake...or something ...
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3 votes
1 answer
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What animal is this? Caution, GRAPHIC!

One of my friends stumbled upon this half part of an animal. It seems lizard-like...I don't think I've ever seen a lizard that large, though. We live in Greece. Can you figure it out? Close-up and a ...
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Poisonous Snakes consuming poison (chemical)

While travelling with my Son to a religious shrine, we saw a dead snake lying on the road. My Son asked a curious question to me "Dad, if Poisonous snakes consume poison (Chemical), Will they die&...
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2 votes
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Aren't tortoise bones fused with the shell? How did this tortoise (in the post) survive without it?

I've just read this story about a tortoise that lost a good portion of its shell in a forest fire here in Brazil and got a 3D-printed prostheses. Here's the picture of it: The way it looks like, it ...
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1 answer
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How old is the Pogona genus?

What it says on the title, how old is the genus Pogona, which includes all bearded dragons? I tried looking online, and all I got was the useless answer of “bearded dragons are descended from their ...
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1 answer
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Help indentify this species of snake/worm

I stumbled upon this snake during my routine walking in the nature park near me. The location is southern India. Time if observation is 6 30 PM. The length was approximately 1 feet. I could see the ...
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What's the most recent common ancestor of reptiles and humans?

In the Phylogeny of humans and reptiles, what is/are some of the most recent common ancestors?
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Help identifying snake? (Southern California)

I just got home after a brief, surprise thunderstorm ... to find a pretty good size snake lounging in the breezeway at the garage side door. (Presumably, it was seeking shelter from the rain?) Could ...
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What Snake is this? (Found at my door in Raebareli, North India)

Found this snake at my door in Raebareli, North India. We of course allowed it to go away peacefully. Could someone please identify it for me?
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What is this snake in South Florida, USA

I observed this snake for about 10 minutes. It was slithering back and forth in about 50x20 yard (50x20 meter) area. Just kept going back and forth (then I left). There was a similar snake at the same ...
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What kind of salamander is this?

This guy was found in central Virginia, under a flower pot. He's about 3 inches long, because part of his tail is either missing or it's just short. He looked dried out, so of course I wet my hand, ...
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7 votes
1 answer
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How do snakes determine the direction of prey from their thermal infrared sensing pit organs?

This answer to How does the “heat vision” of some snakes work? explains the basic idea and there are several linked sources within that go into greater detail on the sensing mechanisms on a physical ...
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What is this nighttime creature?

I almost stepped on this little critter. It blended into my garage floor. It is about about the size of my hand, with huge bulbous eyes that immediately caught my attention. There was a distinct white ...
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1 vote
1 answer
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Water snake with a yellow criss-cross on a black background?

I saw a 60 cm long, very skinny (~15 mm diameter), black with yellow diagonal criss-cross patterned snake swimming in a pond this afternoon in northern Taiwan. It was swimming near the top of the ...
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Are there any examples of viruses that have jumped from reptile to human?

I know that there are plenty of examples of zoonosis occurring from reptiles to humans that involve bacterial pathogens, (e.g. Salmonella) but are there any instances of viruses being transferred from ...
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Why do wild lizards often tap with their front leg?

I have a lot of wild lizards (possibly Podarcis muralis) in my garden, and I have noticed some of their behavior I'd like to understand: whenever they are in 'still' position on any surface, they are ...
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What's this parasite?

Any microbiologists or parasitologists recognize this? It's from my pet bearded dragon in the eastern US and the vet's never seen it before.
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3 votes
1 answer
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what kind of lizard is this

Found on ground by house in residential neighborhood in Fort Pierce FL. looks mature maybe 17".
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6 votes
1 answer
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Can you identify this snake?

On a walk through I’ON Swamp/Natural Forest in Mt. Pleasant, SC, we came upon this snake. We did not get too close for fear it may be poisonous. It had a very dark brown/taupe exterior with almost a ...
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Did any warm blooded animals evolve back into cold blooded?

Pretty much as title says - wondering if evolution can go from mammal back to reptile - either in theory or practice.
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19 votes
2 answers
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What is this animal looking like an Axolotl?

My friend caught a strange looking animal and he's saying it is an axolotl. I keep telling him it's almost impossible, since they are almost extinct in their natural environment and he caught it in St-...
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1 vote
1 answer
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Differentiating Antaresia (Children's Complex) Pythons using something other than color pattern

I have a standard wild-type Children's python (Antaresia childreni) that I'm planning on breeding in the next few years and was just sold a male "Children's python" that I think might actually be a ...
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2 votes
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What is the current status of the taxon Crocodylus raninus?

What is the current status of the taxon Crocodylus raninus, the Borneo Crocodile? See Wikipedia Is it now a valid species, a subspecies of Crocodylus porosus (The Saltwater Crocodile) or merely a ...
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1 vote
1 answer
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Why do tails of some lizards break so easily?

When I was younger once I have tried to catch a ground lizard by its tail but, unfortunately the tail got broken and the lizard ran away. Why did the lizard's tail get broken so easily while other ...
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Snake with strange head

This snake was killed in graveyard Peshawar (Pakistan). I just wonder what is this? Is it a snake? Baby crying sounds were reportedly heard from graveyard in Peshawar after months of search the sounds ...
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0 votes
2 answers
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Help me ID snake

Could someone please tell me if this is a cotton mouth? Found 2 on my back porch, one got away. Location: Fayetteville, AR (USA) [Note: there are several ponds nearby]
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1 vote
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Can any one ID my tortoise?

I have got a pet tortoise and I was wondering if any one could identify it. I think it's a male around 2 years old. I'm not quite sure, it is quite small, very shy and goes very fast. He likes ...
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2 votes
1 answer
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What brazilian snake is this?

(1) Is it possible to identify the snake in the picture below? If (1) cannot be answered: (2) In view of the pattern of colors, is it possible the snake in the picture below be non-venomous? If so, ...
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What species is this lizard?

A small green lizard (20 cm in size). It was found in the direct neighboorhood of a house, in a small village in the Hungarian hills south of the Balaton lake. It was found in the middle of the day. ...
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What is this species of green frog found in store-bought flowers in France?

Today I found a frog in a big flower composition bought at a french shop (living in Grenoble, south of France). It started snowing today, and I'd like to keep it until it's warmer outside. So could ...
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Snake with red eyes and black skin found in a plant pot

It was found dead/stiff in an empty plant pot in a kitchen. Could it be a young Höllenotter (a melanistic vipera berus, photo in Wikimedia Commons)? Is the reddish/brownish part an injury? And ...
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6 votes
1 answer
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What is this tiny lizard?

This tiny guy stumbled into our house in the suburbs of Sydney. What species is it? It's dark and has two yellow stripes going along the length of its body. They start on its head and go right above ...
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3 votes
0 answers
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How old is the action of sneezing?

Is there an estimate for when the ability of sneezing evolved? A little bit of research, and some critical review of my memories tell me that: Many, if not maybe all mammals sneeze. Some reptiles ...
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Scientific name of a lizard's reproductive system

I need to find the scientific (latin) names of the reproductive organs of female and male lizards. So far the only result I've got is that male lizards have hemipenes inverso, but nothing on the ...
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Larva attacking frog ? Guide about this

The above picture was taken in western forest of India where a larva attached itself to a frog neck. What is it and how it will effect the frog?
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6 votes
1 answer
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What kind of snake is this

Found this outside on patio in northern Virginia, Ashburn area, September 2018. It's about 12 inches. Is it a water snake or rattlesnake?
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1 vote
1 answer
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Snake Identification - St. Louis, MO

We found this tiny snake in the finished part of our basement today. We live in the St. Louis, Missouri area. The snake is dark greenish-grayish and has very faint lines running the length of its ...
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2 votes
0 answers
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Lizard Identification

What is this lizard? Seen in Hollywood, Florida, on a golf course. It may have been an escaped pet and was approximately 17" long.
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2 votes
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What is this frog I found

What type of frog or toad is this? I found him in my backyard in southern Alabama and he is clearly very small. I’m not sure what species it is, it’s mostly brown but has small spots on the top of his ...
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2 votes
1 answer
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Recognition of snake (image)

I would like some help with the recognition of the snake shown in the image below. I was doing a fieldwork in a forest in Slovakia when I found it. I was thinking it could be a water snake but I am ...
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Is this a worm or snake?How to get rid of it?

Hi! I found this thing in my bathroom. I killed it but still it's friends keep on reappearing. It moves slowly , is it a snake? How can i get rid of them? I live in Mumbai, India. It's rainy season ...
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2 votes
1 answer
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Identification of snake

Can someone identify this snake? Photographed in a home in Los Lunas, NM, USA.
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1 vote
1 answer
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Can someone tell me what kind of reptile is this?

It was found in El Paso Texas. It was very scared and weak when I found it. But I bought it a small aquarium and some food to make sure it’s ok before I let it go. It’s tail is broken off. It have ...
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3 votes
2 answers
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What snake is this one?

I'm wondering what kind of snake is the one in the attached photo. It looks like Vipera aspis but It seemed a bit too big (lenght of about 1 meter). This photo was taken near Como, in the north of ...
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