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Questions tagged [zoology]

The biological study of animals.

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What is the difference between numerical and phylogenetic taxonomy?

I am a 15 year old boy,who started developing an interest towards biology recently. I am interested in these two schools of taxonomy. Thank you for all the answers!
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1answer
52 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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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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16 views

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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I in a nerve if Sodium Potassium pump is blocked then which of the following most likely to be happen [closed]

Plz answer this question anyone get answrr plz tell And write.
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0answers
32 views

How much space does a loggerhead sea turtle need in an enclosed space to live?

How much space does a logger head sea turtle need in an enclosed space (like a zoo) to live? Or, more broadly, how much space does an animal need in an enclosed space (like a zoo) to live?
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0answers
33 views

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
241 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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0answers
32 views

Do cats produce DMT?

There is a question on Skeptics.SE that asks if "cats have a chemical in their brains that resembles LSD." I haven't found any similar claim online, but started wondering: Do cats produce (natural) ...
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1answer
105 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
29 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
67 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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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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What is the difference between different schools of taxonomy?

I have been quite interested about biology lately. I would like to know what are some of the main differences between schools of taxonomy. Thank you for the answer!
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0answers
35 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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0answers
12 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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0answers
28 views

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
109 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
82 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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0answers
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What kind of skull could this be?

found this in Nova Scotia. I have looked and can not find an answer as to what kind of skull it is.
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0answers
25 views

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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0answers
12 views

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
38 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
54 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
56 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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0answers
19 views

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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0answers
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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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2answers
3k views

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
130 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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2answers
47 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
61 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
129 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 ...
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0answers
45 views

Small mammal identification

Small skull found in Alberta, Canada. Do not know the region. Skull is about 17 mm in length. Trying to identify the species, narrowed it down to most like a species of vole but can't figure out which ...
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0answers
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Is there animal other than human that can recognize distal causes?

We know animals can recognize proximate causes. For example, if animal A hits animal B and injures it then usually animal B is able to associate animal A with his injury. From our everyday experience ...
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0answers
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What is the name of this moth and why does it have an extra wing?

Moth of length 15mm. Seen in Kerala, India on March 2019. Third Unusual wing part visible. Without mobile flash the colour of moth visible is completely black.
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0answers
23 views

If the urbilaterian already had mouth and anus, how it came that their functions inverted in deuterostomes?

If the urbilaterian already had mouth and anus, how it came that their functions inverted in deuterostomes? I hardly can imagine how the functions of the mouth and anus can be swapped. Also, if the ...
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1answer
55 views

Is the deep ocean fish look ugly because due to darkness there is no visual sexual selection? [closed]

Is the deep ocean fish look ugly because due to darkness there is no visual sexual selection? If so, is there a common notion of beauty between humans and animals?
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0answers
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Does the preservation fluid (ethanol or formaldehyde) leach heavy metals from mollusc tissue?

In a thread on researchgate, the concern was raised that long term exposure to unbuffered preservation fluids such as ethanol or formaldehyde may leach heavy metals from biological samples due to a ...
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1answer
80 views

can you tell me what kind of animal this is?

I found this skull over 2 years ago and i have been unable to find another like it or even come across someone who knows what it is. i live in south mississippi and the animal it came from looked like ...
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2answers
73 views

Has an ape ever drawn/painted something?

I know there are plenty of examples of apes making paintings and drawings, but has there ever been a recorded case of one representing something in their art?
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1answer
50 views

Animal with “advantageous” trait in a environment where the trait is never utilized (high cold tolerance in mild climate) - natural selection occur?

If you were to put an animal with a certain type of seemingly advantageous "trait" into an environment where the trait was not necessarily needed, ex: Putting an animal with a high tolerance for cold ...
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3answers
108 views

Evolution question on speciation? Really confusing!

Okay, my teacher assigned this homework question, but nothing like this was ever given in our textbook. Suppose that a type of tree tends to speciate over 10 million years and a species of fly tends ...
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0answers
36 views

Which statements are true regarding an energy pyramid? [closed]

The number of producers is greater than the number of primary consumers. The amount of energy at the primary consumer level is greater than the amount of energy at the secondary consumer level. The ...
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1answer
6k views

Do large animals experience a meaningful delay when moving their most distant appendages?

According to the Physics Factbook, nerve impulses travel at speeds anywhere from 1 meter per second up to around 100 meters per second. Blue whales reach up to around 30 meters long. For a full-size ...
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1answer
94 views

What is this furry, long-limbed, presumably tree-dwelling creature?

Can anyone identify the species below? I believe the picture was taken at the Museum Of Zoology in Cambridge so maybe someone cleverer than me could narrow it down using their collections search. Of ...
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1answer
18 views

The detail about the exact time of heart attack

Storage of cholesterol in coronary artery tends to heart attack. But in which phase heart attack occurs? Why only a definite time is called heart attack? Why this is the extreme point of coronary ...
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1answer
52 views

Strange Black-Brown Insect Identification

Interesting Insect from Singapore. Around 0.5cm. Has 2 tiny pinchers at its tail. Insect is black for most part. Please zoom in on scotch tape:
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0answers
32 views

Why did this Rabbit behave like this? [closed]

https://youtu.be/B3_S3Uj18G8 In this video, inappropriately titled autistic rabbit, we see the rabbit first lying motionless before suddenly starting to spin around and jumping around. What caused ...
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1answer
120 views

Why do some animals have beards?

Why do some animals such as some Goats, Ibex, Orangutan etc, have long well-shaped beard like men?
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2answers
105 views

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 ...