Questions tagged [zoology]

The biological study of animals. Very broad use so be sure to add additional clarifying tags

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27 views

What was the cause of some egg-laying animals evolution to animal-laying?

Is there a specific reason for this evolution? Are no egg-laying animals more complex beings so their embryonic development requires more time and better nutrition conditions?
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66 views

What is this seaside thing?

I found this on the sand and I do not know what is it? I thought it is sea devil, however I checked google and it is not. Can someone tell me what is it(its name )
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Any arthropod with non-sprawling limbs?

Are there arthropods with semi-erect or erect limbs? If not, could it be because of interference between more than four limbs or any other constraint?
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2answers
110 views

Help identifying a weird creature

Okay, so there is this weird creature, which has been crawling around our house. I can hear it moving around, and it's especially active in the dark. I've however been able to take a picture of it. If ...
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What type of maggots are these?

After leaving some hot dogs out in the sun at a pool party, we brought them inside and refrigerated them. I took them out today without thinking and microwaved them. When I put them on my plate, I ...
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1answer
42 views

What species of butterfly/moth is this please?

What species is this please? It's really tiny. That's an oregano leaf. Location: United Kingdom
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144 views

Do birds grieve and feel emotion?

Crows are surprisingly clever with tool making/use and even understanding displacement water over sand! Clearly there's some relatively high level cognitive processes going on up in those avian brains....
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1answer
91 views

Can you identify this red insect?

Location: Lansdowne, Uttarakhand, India Date: 27 May 2017 Time: 5.33 pm The insect was found walking upwards on a plastic table. It was about 3-4cm long, as far as I remember; its been a long time ...
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1answer
59 views

Aquatic Snail Identification

I can’t for the life of me find an identification of these snails. They’re thriving in brackish water, but may be freshwater naturally. They’re about .8cm long at their largest. I believe they have ...
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1answer
51 views

Killer whale color

What purpose does the B/W killer whale color scheme serve? And what evolutionary pressure could possibly force all of them to go B/W in such a peculiar way ie with weird patches in the black. Also why ...
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1answer
41 views

What species would this be?

A common way to define species can be found on Wikipedia: A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can ...
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46 views

Why does centipede keep running into my hair and bite me? [closed]

After I moved into a new house in the suburban area, I was bitten by an unknown creature near my spine at mid-night. I felt painful and dizzy. However, after 15 mins, I no longer felt dizzy and the ...
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Why can dogs hyperventilate without consequences like humans?

During the heat of summer, dogs usually breathes very fast, like 100 times per minute or more. If humans do so, we will experience an array of negative effects like dizziness, finger tingling or ...
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110 views

What species is this little white bird?

This bird was found in my backyard in the north east of Italy. It's about 5cm long and can fly as high as 1.5m (so far).
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Why are birds have balls in the form a cork screw i dont have the scientific name [closed]

Why do birds have penises in the form of a cork screw?
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1answer
56 views

What type of moth is this?

What type of moth is this that was on my wall in Spain
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39 views

Why are dolphins born tail first?

I heard most dolphins are born tail first. I have read many explanations from books and internet articles and they said that dolphins are born tail first to prevent them from drowning. But now I don'...
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1answer
42 views

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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38 views

What species of frog is this?

I was walking around outside my house when I found this little guy clinging to the outer wall of my house. The house in question is located in Indiana, United States. What is interesting to note is ...
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57 views

Can you help me identifying an insect I saw?

I'm a student of biology and yesterday we went to the fields to collect some plants for our herbariums. Suddenly one student of our group said that he saw a very strange bug that he thought that was ...
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what is this bug ? i found it on bed 2 times

What is this 1mm long bug I found on my bed in Egypt? Here is its back photo
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1answer
481 views

What species is this grey insect with red antennae and mouthparts? [duplicate]

I’m very curious to know whether this is a type of ant or not, I only see 6 legs. Found in Tampa, Florida near Tarpon Springs.
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1answer
82 views

Why is sex hurtful for some animals but pleasurable for others?

Sex seems to be pretty hurtful for feline for example. On the other hand sex is pleasurable for humans. Why is sex pleasurable for some and not for others? How do these things evolve?
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1answer
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Is this an asian hornet

My mother found a hornet at home (in northern France) that is probably building a nest. Is that an asian hornet? If yes, how can I exterminate them?
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What is the smallest known viviparus

I want to know what is the smallest viviparus known at this time. I was Googling, but I can discover this animal. Thanks.
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What exactly happens to animals that fail mating rituals?

Quite a few animals (usually males) participate in various mating rituals to showcase their fertility as mates. While presumably, the successful ones get a chance to mate with females, it occurred to ...
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1answer
303 views

What is the largest species of polychaete?

My Google searches seemed to avail no results. My question is: What is the largest living species in the class Polychaeta? That's about it. I understand that there will be few accessible weights for ...
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Do cats produce DMT?

Edit: If somebody (anybody) wants to add an answer so the bounty won't go to waste, please do so! The comments have already introduced me to the Kegg metabolism database, some interesting papers, and ...
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1answer
137 views

Identify This Glowing Insect

When I was walking in my garden at night I saw this small glowing insect, can you identify what is this insect? Location: Middle-East Palestine Size: Length about 1 CM This image in the dark (see ...
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1answer
44 views

Why do spinner dolphins spin?

Spinner dolphins have a behavior where they jump out of the water and spin a bunch of times in the air. Wikipedia's article on this just states These spins may serve several functions and doesn't ...
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1answer
124 views

What are the predators of Glaucus atlanticus?

I'm researching the Glaucus atlanticus, also known as the blue glaucus, among various other names, but after reading quite a few articles and searching on the Internet as many different ways as I can ...
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1answer
43 views

Can someone help me identify this Brazilian spider?

Does anyone know anything about the identification of this spider? Sorry, but it's the only image I have. It was shot at 2004, January 25th (summer), at 11:27 AM, in Cerrado biome at Minas Gerais ...
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38 views

How can I learn biology by myself? [duplicate]

I am only 15 years old,and my primary school education hasn't been that good,also I forgot a lot of things. I would like to start again,and I am asking for your advice. What are some of the good ...
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1answer
96 views

Dragonish caterpillar from North Vietnam

I encountered this caterpillar in North Vietnam (Hanoi) and could not find any reliable web site for this kind of search. I am not an entomologist, so I don't even know how to describe it, except that ...
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19 views

How many times have Ecdysozoans made the transition to land? [duplicate]

In my evolutionary course we were taught that land plants are a monophyletic group, the transistion to land happened only once. The same goes for the tetrapods within the vertabrates. However this ...
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Identify this frog from Bangladesh

Description: About 5-6 in long Time: March,2019 (summer) Location: (Alutila Cave) Khagrachari, Bangladesh
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2answers
155 views

Tiny white very hard cell bug! Please help to identify!

I found these bugs walking on the floor/ wall and on my laptop. And unfortunately I think they could be in my bed, too, since I bring my laptop to bed sometimes. I live in a big city in the ...
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1answer
181 views

Tiny dark-colored bug ID in Amman-Jordan

I live in Amman-Jordan and I keep finding this bug species on my walls. I saw four till now on the walls of another room. A little bit bigger than the first one. Click on all photos to open full-...
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Is Wikipedia a good source of taxonomy? [duplicate]

I have been quite interested in biology lately,and I would like to know whether it is a good choice to look up taxonomic information there.
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Identification of Black-Grey Striped Spider (India ,Kolkata)?

I found it on my rooftop . Location : India , Kolkata Season : Summer Morphology : Hairy Legs , with black and grey striped body . Length- 4cm -5cm with legspan Width - 2cm-3cm I couldnt get better ...
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1answer
88 views

What is this white, winged insect?

I saw this insect crawling on a wall in the UK (Birmingham) today (March 28th). It's about 5mm long. I assumed it was a white fly, but having looked at other images of white files on google, I don't ...
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1answer
55 views

What's the smallest flier that migrates?

Painted ladies and monarchs migrate hundreds of miles (~1.61 hundreds of kms). Are there long distance fliers that are significantly smaller? Dual question: Are fliers' migration distances strictly ...
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1answer
60 views

Why are sea dwelling mammals less aggressive than land dwelling mammals?

Many mammals on land seem to be quite dangerous to humans: e.g., tigers, lions, elephants, hypos etc. However, their sea-dwelling counterparts (e.g., orcas, dolphins, sea lions, whales etc.) are ...
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How to recreate bioluminescence in a lab?

I have several mg/mL of D-luciferin, luciferase (firefly), ATP solution (25 mmol) and MgSO4 (for the mg2+ ions). The experiment has to be done in cuvettes of 2,5 mL (if I get any results, it will be ...
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How do some deep sea creatures lower their metabolism to stay alive for a long time?

I was watching some bio related videos and saw in one that some deep sea creatures and other organisms purposefully limit their movement to decrease metabolism rates. Do they live longer? If we ...
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What exactly is this small puffer fish doing and how did it manage to accomplish such a feat?

I recently saw a video on youtube where it shows a puffer fish making intricate designs in the sand: OZZY MAN VIDEO The puffer fish made this design on the sand: What exactly is the puffer ...
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2answers
153 views

Why do fruit flies go so close to large reservoirs of liquid when they are likely to fall in due to surface tension?

I had accidentally left out half a glass of red wine by the windowsill when I went to sleep. As anyone knows, if you do this with a window cracked you will get quite a few fruit flies near it in that ...
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1answer
70 views

Red and yellow insect found in kitchen in Conrad, Montana (USA)

Beetle found in our kitchen in Conrad, Montana (USA) on 3/13/19:
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1answer
132 views

What is the reason behind the subphylum name “Urochordata” for tunicates?

There are two major invertebrate subphyla of the chordates (phylum Chordata): Cephalochordata (the lancelets) Urochordata, aka Tunicata (the tunicates) My understanding is that the cephalochordates ...
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1answer
285 views

What are these tiny creatures swimming around my aquarium?

I was checking out my aquarium today, and decided to scoop out a water sample and take a look at it more closely. What I discovered were numerous, very, very tiny white worms (?) swimming around in ...