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Questions tagged [herpetology]

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

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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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Stenothermal Exhalation: Warm or Cold?

The answer might be obvious, but I've wondered if stenotherms like a common house gecko, for instance, might produce sufficient respiratory heat to exhale warm air. Clearly, respiratory heat and ...
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Sugested literature for herpetology

I'm a mathametician who always have liked biology and especially reptiles. I'm here because I wanted to ask you for advice in to which books should I read to start with herpetology and what should I ...
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2answers
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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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1answer
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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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112 views

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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1answer
547 views

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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1answer
54 views

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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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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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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1answer
87 views

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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1answer
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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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Name of sudden chicken movements in the neck and head, and their biology and reason of existence

I would like to know what the name of the jerks caused by chickens (and lizards) moving the head (in the case of chickens), or the entire body (in the case of lizards), is, when these move in bursts. ...
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1answer
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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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2answers
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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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1answer
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Help identifying leaf-like bone

I found two of these objects near a creek in Missouri. They feel like they are made out of bone but they do not look like any bone I have seen before. They also appear as though the could be some sort ...
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1answer
138 views

Is it Bufo bufo?

I find a couple of frogs. It was cca. 4inches long and 2inches wide. Photo was taken in Prague, Czech republic, middle Europe.. Same zoomed.
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1answer
171 views

The 4-chambered heart

Birds and humans have a four chambered heart. All animals having 4-chambered hearts are warm-blooded. Why are crocodiles an exception? Why are they cold-blooded even though they have a 4-chambered ...
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1answer
84 views

Why is there an apparent reduction of reptile species near the Mississippi River?

The USGS Gap Analysis Program published a map of reptile species richness in the U.S. There is a conspicuous reduction in reptile richness along the Mississippi River corridor. Why might this be? ...
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1answer
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Why do house geckos take so long to react?

This is the Common house gecko found abundantly where I live. I've been observing this for quite long and I used to ignore it after thinking on it for a short while. Today I decided to write this ...
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1answer
135 views

What species is this turtle in Houston?

This turtle was displaced by hurricane Harvey in Houston, Texas, USA (Buffalo Bayou and Dunlavy). It appears to be a snapper. Can someone identify the exact species?
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2answers
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Evolution of dinosaurs

What did dinosaurs evolve from? Was it the reptiles that evolved from amphibians? I have been researching this but am very confused with who their direct predecessor was. Amphibians evolved from fish.....
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1answer
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snake identification

While moving large, old oak logs I'd stacked a year ago to form a terraced garden, I noticed it was very moist under the logs. I saw 5 kingsnakes, a scarlet snake, a couple of small brown earth ...
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1answer
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What species of snake found in central Alabama, US?

The snake in the image below was found in the attic of a home in a relatively well-forested suburb of central Alabama, south of Birmingham about 20 minutes. It was safely released outside in the ...
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1answer
158 views

Do lizards expand in the summer and contract in the winter?

We all know that objects expand on heating and contract on cooling. Lizards are cold-blooded animals, i.e. they become hotter and cooler depending on their outside temperature. Warm blooded animals ...
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2answers
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Had there been a non-flying pterosaur?

Since there are non-flying birds and secondary non-flying insects, it is reasonable to assume there were also non-flying pterosaurs.
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Identification of Anoles

Can anyone help me identify these anole species? All photos taken on St. Thomas, USVI, in close proximity to one another. (click to zoom in) Each photo is a different individual, but the overall ...
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1answer
156 views

Minor differences in morphology of a snake: Why designate it a different species?

I was motivated to ask based on an answer to another question that I read on SE-Biology: You can differentiate this species [Ashok's Bronzeback (Dendrelaphis ashoki)] from closely related D. ...
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1answer
921 views

Indian Snake Species Identification

Location: southern India Time: noon Approx. Size: Length: around 2 feet; Size: extremely small, like a straw. Diameter: less than 1 cm. Was very fast in climbing aisle of mud bed/uphill like 90 ...
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1answer
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Is this lizard protected or endangered?

We think that it's a type of alligator lizard. It was found in the open space area near my home in Moss Beach California (about 10 miles south of San Francisco). Thank you!
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How do you identify this particular snake shedding?

Aloha, Snakes are illegal in the State of Hawaii, with the exception of the Hawaiian Blind Snake (Brahminy Blind Snake (Ramphotyhlops braminus)). I've read through a plethora of articles to no avail....
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1answer
297 views

What kind of snake is this?

First, we are located in Missouri. In between St. Louis and Cape Girardeau. St. Francois county to be precise. We just walked outside and found this on the porch so we carried it off. Normally this ...
6
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1answer
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Species Identification: Snake, New Mexico

The snake is about one and a half inches in diameter at its widest, a half inch at the head, and about two feet long. I found it in central New Mexico. It's hard to see the head in the pics, but it ...
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1answer
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Extinction of non-mammal Synapsida

I am following M.J. Benton's Vertebrate Palaeontology, which explains how many groups of Synapsida were already extinct in the Mesozoic Era, with one obvious exception being the group of Cynodontia, ...
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1answer
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What is the Cordil that Edward Topsell describes?

In his "History of four-footed beasts and serpents", Edward Topsell describes a "serpent" called Cordil. Since he lists everything that crawls on the ground as a serpent, regardless of being a reptile,...
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1answer
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How were (many) dinosaurs' brains so small?

Brain size (or its proxy, encephalization quotient) usually varies allometrically with mass -- larger creatures need larger brains to control their larger bodies, apparently. Dinosaurs are popularly ...
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1answer
174 views

Lizard species identification

I managed to photograph a lizard in Haruvit Forest, Israel. I would like to know - what lizard species is this? Size appr. 20-25cm
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1answer
272 views

Why would a python go after such large prey?

I read that most Pythons would go for smaller prey, around the size of a house cat, but that larger species enjoy crocodiles, deer and even a bit of antelope for dinner. But why? Now, I realise that ...
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3answers
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What is the name of this snake?

This baby snake just came inside my house in Sri Lanka, and I'm wondering whether it is venomous. Do you know this snake? I am posting this from my phone so I am unable to format properly. And I have ...
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1answer
296 views

How does the “heat vision” of some snakes work?

Some snakes have an infrared sense which is used to track warmblooded animals. How does that organ work? And would a similar organ be possible in a warmblooded animal?
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3answers
286 views

Identification of this species of Toad

I found a short video on the Internet of a toad and I wonder if anybody could identify it? It was posted on a social-media/blogging website called 'Tumblr', so I don't know much about it (e.g., ...
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2answers
474 views

Do reptiles hunt?

I encountered the following passage in the book The Art of Interactive Design by Criss Crawford (bold formatting is mine): [...] From stalking and evasion to the chase, the [interaction between ...
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1answer
743 views

What kind of tortoise is this?

Can you help me to ID this tortoise? It was walking around near to my house and then my mom found it, so we'd like to know more info. Its Straight Carapace Length is about 5+ inches. Found it in mid-...
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Was this snake behaving abnormally?

This morning, I walked out front of my house to find a medium-sized snake balled up on my driveway beneath my motorcycle. I spotted it from my porch so I didn't walk any closer. I believe it was a ...