Questions tagged [zoology]

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

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1answer
314 views

Is the “Manhattan Ant” a new species; still only found in Manhattan's Upper West Side?

I've stumbled upon the viewing.nyc article Upper West Side Has Its Own Ant Species Dubbed the "ManhattAnt" which says: Columbia University biologist Rob Dunn has discovered a unique species of ant ...
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0answers
56 views

Can Anyone Identify this Tissue?

I am hoping someone can identify the image below My wife felt a bug bite her and found this in her hair now she's worried that it was a tick. the photo is at 40X under microscope. I'm guessing it's ...
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1answer
84 views

What kind of bug is this? I found it on my Cleome plant in Atlanta Georgia

This bug was on my cleome plant in Atlanta Georgia
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59 views

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
22 views

Strange insect identification

Tonight I have found this new friend flyng inside my home. First time ever I sea something like this here in the north East of Italy
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51 views

What kind of sieve does one use to extract meiofauna?

Suppose I have a core of sediment, and I want to extract the meiofauna from it, in order to study these organisms. According to the sources I could find, this involves using a very fine (e.g. 45 μm) ...
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26 views

Efficacy of sonic kangaroo deterrents

Bender (2003) tested the efficacy of sonic kangaroo deterrents. Their device is static (and apparently ineffective). Has there been any rigorous testing of the whistle-like 'kangaroo deterrent' ...
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1answer
376 views

Why do crocodiles have a high concentration of lactic acid in their blood?

Crocodilians have high concentration of lactic acid in their blood. This is the cause that prevents them from prolonged intense activity, since prolonged intense activity causes the muscles to secrete ...
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43 views

Which extant species has the largest horns?

Among the bovids (cattle, antelope and all member of the Bovidae family): which species has the largest and longest horns? Please answer when including and excluding domesticated livestock and cattle. ...
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1answer
71 views

What kind of red/green/black, spiny caterpillar is this?

It's red and lime green with black on its back and a few white spots as well. Found in Tulsa, Oklahoma (USA).
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2answers
412 views

Among primates, is it true that homosexual behavior is extremely unnatural and uncommon?

I was recently reading a book published by some anonymous biologist known as Lynn Saxon, in which she appears to want to refute Christopher Ryan's thesis in Sex at Dawn that prior to the invent of ...
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29 views

Is there mismatch in injures or death numbers for carnivores that hunt during day time and night time?

Is there significant mismatch in injures or death numbers for hunters (when hunter was killed or injured by its prey), between day time and night time hunts (carnivores that hunt during the day time ...
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1answer
87 views

Why are the hormones dopamine, adrenaline, noradrenaline and serotonin so ubiquitous across the animal kingdom?

As far as I know there is no reason for the makeup of a given hormone to be universal as it merely serves as a carrier from one part of the brain to another. So why are the above hormones seen across ...
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52 views

Is there a limit on how big a free living unicellular mono-nuclear organism can be?

When I looked for the largest protozoan I've found the name Syringammina fragilissima. According to wikipedia " .. Syringammina fragilissima, is among the largest known coenocytes, reaching up to 20 ...
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1answer
257 views

Can someone identify this brown spider in California

Spider found on transit case from California. Approx 1 1/2 inches leg span. Is it poisionus?
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1answer
170 views

Is this is a parasitic wasp, which I found in Blackpool Lancashire?

A wasp I photographed on my van window in Blackpool just before it attacked me. Is it true that it’s rare to see them in the UK?
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1answer
163 views

What are the classical adaptations of amphibians? [closed]

My question is about amphibians in humid or underwater environments. What biological adaptations can found in them, further what purposes do they serve?
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1answer
125 views

Why do frogs and toads only appear when it is dark outside?

I noticed outdoors how frogs and toads only appear when it is dark or cloudy. Such as only after it rains or during night time. Why is this?
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1answer
58 views

Why swordfish aren't put in the same family as Marlins?

Why Swordfish (Xiphias gladius), which are very similar to Marlins, do not belong to the same family as Marlin - Istiophoridae? Both has long bill or a sword in the upper jaw, both has (at least in ...
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0answers
33 views

How did craniates evolve?

Looking at most chordate phylogenetic trees, it seems that we usually have something like this: ...
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1answer
120 views

Identify this excreta!

A picture is worth a thousand words! It's about 1.3cm (1/2") long. We rented a basement and I found this on a machine that was moved in a bit earlier. I would like to know if there are any mice, ...
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1answer
90 views

If wolves (or foxes) are fitter than rabbits, why rabbits have not become extinct? [duplicate]

I do not pretend to "demolish" the Darwinian theory of biological evolution and the "survival of the fittest", that's far from my intention. I have this doubt because of the fact that humanity, as ...
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1answer
145 views

What benefits do sloths and manatees gain from algae growth on their fur/skin?

Slow moving sloths and manatees have green algae growing on their fur/skin. Are there any other animals that have algae growth on them, and does the algae benefit the fitness of these animals? ...
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5k views

Can animals train to be noticeably stronger, faster, more agile… than other animals of the same species?

Humans have a huge variation in physical ability because of exercise differences. Olympic athletes are a number of times stronger than average people on the street. It seems that variation in animals ...
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1answer
139 views

Can anyone identify this grey spotted insect — is it a tree bug species?

This insect was found in Pune, India near a Bauhinia variegata (orchid tree). I think it's a bug. What species is it?
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1answer
841 views

Larva in cat's water dish

Can anyone help me identify this tiny larva I found in my cat's water dish and tell me how it got there?
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0answers
27 views

Butterfly/Moth identification: Puppa is half green, half brown, and 1,5cm long, found in Upper Austria

Question: What butterfly is going to evolve out of the puppa illustrated in the attached picture? Characteristics: Puppa is half green, half brown, and 1,5cm long Further details: I don't know if ...
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45 views

what's the species identification of that camponotus queen

City: Antalya, Turkey Date: July 27 night Specific location: I found it in the middle of the city
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191 views

Is this a bed bug nymph?

hello , I want to know if this is a bed bug nymph or it's just an another insect? I got an issue with bed bugs few days ago in a hotel during a travel to Prague. Once home (in Germany), I washed all ...
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33 views

Can someone identify this Lepidoptera larva?

That's from Brazilian Amazon, more specifically a small mountain (300 m high) called "Morro dos Seis Lagos" (six lakes hill), at São Gabriel da Cachoeira municipality, Amazonas state, located at 0.283 ...
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1answer
33 views

Is it possible to guide animals to a new breeding ground?

(This is a question for a book I'm working on.) One of the threats to some animal species is the disappearance of breeding grounds (because of the spreading human population, or for example because ...
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1answer
69 views

What diurnal red & black moth is this?

Seen today on a hot summer day in Stockholm, Sweden. Length around 25 mm.
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1answer
206 views

Caterpillar resembling a snake

I found a very interesting caterpillar. It's 5 cm long and looks like a snake. I discoved it in a greenhouse on a vine in the Czech Republic. I found two types: a green one and a brown one, both ...
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1answer
147 views

Do cows chew in a preferential chirality?

One of the enduring myths in molecular physics, when talking about chirality as pertains the existence of enantiomers and the differences between them, is that the way cows chew is also chiral, i.e. ...
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1answer
91 views

Factors That Would Promote Eusocial Development In Mammals?

What would cause mammals to evolve to be more eusocial, like the naked mole rat did? What advantages does eusociality give in such scenarios?
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1answer
77 views

What is the name of this beautiful insect?

I spotted this magnificient looking insect last night in my house in Singapore. It was around 1.5 inches long and had a silverish golden back with long legs and antennae. ^ Click for full-size, ...
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1answer
42 views

Is this a soldier beetle? Bug identification

I'm curious to find out what kind of bug this is. Reverse Google image search suggested a type of soldier beetle, but I am not convinced. The photo is taken in summer, in England Thanks!
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1answer
34 views

Some facts about the chameleophant please [closed]

Can you give me some facts (where it lives, their size etc.) about the chameleophant? Can't find it on google...
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1answer
25 views

Does the repellence of an insecticide affect its efficacy (measured in insect mortality)?

I am currently working on assessing the efficacy of a suspected insecticide on a particular species of insect. I happen to be looking into any repellence caused by the substance. I test for both ...
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1answer
34 views

replenishment of wild salmon [closed]

I understand fish from salmon farms are inferior, so I am wondering if it would be better to 'seed' the original waterways with wild caught roe/milt? I am sure it is complicated, but so is salmon ...
3
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1answer
535 views

Are all mammals capable of sneezing?

I only know dogs and humans sneeze... so do other mammals sneeze as well? Is it possibly an evolutionarily-determined immunological trigger?
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4answers
403 views

What did the evolution of multicellular animals look like?

What did the evolution of multicellular animals look like? Aspects of this question include: (1) Are there any living organisms that might be helpful in visualizing "transitional forms" between ...
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1answer
42 views

Addax in the Land of Israel

The Addax (Addax nasomaculatus) is critically endangered species of a desert anetelope with impressive long horns. Today there are small populations in the Sahara desert and the Arabian desert (Saudi ...
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1answer
56 views

Identifying a spider very similar to a brown recluse

I took this pic tonight when I saw what I thought to be a Loxosceles reclusa or brown recluse. But when I looked closer, the typical pattern on the back of its cephalothorax seems to be upside down! I ...
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1answer
58 views

Would butterflies prefer drinking blood over nectar?

Knowing that butterflies will drink carrion blood and nectar, I wonder if they would prefer one over the other? The blood has more nutrients like iron and copper that the nectar would not have. Or do ...
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2answers
187 views

What animal does this skull belong to?

This skull was found in Greece, about 40 years ago, possibly in the island of Euboea (there is uncertainty about the area it was found). The length from nose to the end of horns is 67 cm. The skull's ...
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27 views

What's the name for this kind of pointy/raised texture in animals?

I was in a store and I saw a jackfruit, seen here https://livenaturallymagazine.com/all-about-jackfruit/ with this sort of...scaly yet round and also pointy texture. Then, I could have sworn I saw ...
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43 views

Do birds have quadriceps and thighs fused into their hips?

I'm looking at 3D modeling a large bird like an emu or ostrich, but I don't know how the muscles surrounding the femur connect to the hips/back. It seems weird that the entire thigh and quadriceps ...
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1answer
533 views

Are there any animals that maintain white fur year round?

Besides examples of rare albino animals, it seems animals only have white fur during the winter. Additionally, and not coincidentally, the examples I've found live in the northern latitudes with ...
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1answer
112 views

Reference for the bite force for Nile Crocodile

The (maximal) bite force of the Nile Crocodile (Crocodylus niloticus) is estimated around 22,000 Newton (refer to YouTube interview with Ofer Kobi, a crocodile conservation ranger and croc farm owner, ...