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Questions tagged [zoology]

The biological study of animals.

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Ethology - Would a man-eater attack a human if it were saved?

If a wild man-eating animal (e.g. big cats, bears, alligators) were saved or helped out by a human in a desperate situation - example provided in this video - is it expected that said animal might ...
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1answer
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What does hypolithial mean

I'm writing a thesis in biology and my supervisor asked me to find literature about beetles living under rocks - specifically she wants me to find something about hypolithial diversity. However Google ...
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1answer
31 views

What is name of the red eyed rabbit or hare, found in Himalayan region?

Is it Rabbit or Hare? The eyes are red in colour. These animals are habitat of Himalaya. The pictures are taken in Dowhill Park, Kurseong, West Bengal, India.
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1answer
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What's the relationship between oxygen consumption and ambient oxygen concentration for a lobster?

I was looking at a research paper by Thomas (1954) and came across a graph with ambient oxygen concentration plotted against oxygen consumption rate of a European lobster kept in water. As we can see,...
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Which mammal produces the most milk?

I'm searching for mammal who can produce most milk whenever she lactate. I Googled it but it says dairy cattle which biologically speaking is not right answer, because a baby whale can drink up to 150 ...
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2answers
54 views

Why don't people seem to die from salmonella in bites?

As far as I know, reptiles have salmonella in their mouths as part of their digestive process. Every time I hear about someone being bitten by an python or alligator or monitor either at a zoo or in ...
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Why do turkeys have no feathers on the neck?

I have zero idea about zoology in general but it would seem that having no feathers of the head/neck is a trait developed by scavengers, providing them an advantage of not having their feathers ...
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Are “Riftia Pachyptila” an autotroph, herbivore or something else?

Riftia Pachyptila (also known as Giant Tube Worms) live on volcanic vents deep on the ocean floor. These creatures have no mouths or intestines but instead lead a symbiotic life with bacteria within ...
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3answers
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Public database of animal specifications

I'm a math teacher looking for data to help my students interested in biology complete a quantitatively flavored study of animals. (As a math person, I apologize if I'm not using discipline-...
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26 views

What's the lowest temperature a tardigrade can remain active at?

There's a lot of information floating around the net about how tough they are & what they can survive, like "We now know that some tardigrades can tolerate being frozen to -272.8 °C". But any ...
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33 views

What's the lowest atmospheric pressure a tardigrade can remain active in?

I'm not asking what atmospheric pressures they can survive (we now they can survive the vacuum of space) I'm wondering at what point a deficit of atmospheric pressure would cause them to enter one of ...
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What anatomical structures do baleen whales use to vocalize?

What anatomical structures do baleen whales use to vocalize? How does this differ between species?
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1answer
53 views

Can multiple cetacean species communicate?

It seems that individuals within the same species have their own communication, but is there evidence to suggest that individuals from different species are able to communicate?
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2answers
38 views

Why do humpback whales sing songs?

Scientists have documented that it seems to only be male humpback whales who sing structured songs, but do we know what purpose their songs play?
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1answer
38 views

What's the relationship between snail movement and rain?

I have a question about the relationship between snail and rain. A few days ago I found snail shells in a moist area and I brought them in for crafts work (I thought they were empty because snail ...
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1answer
19 views

Since frogs are ectotherms and supposed to have low metabolic rate, why do they grow so fast and eat so much?

It's always emphasized in literature that endothermy enables high growth rates but requires more food. But look at frogs, for example: bullfrogs, toads, pacman frogs etc. They would readily eat a ...
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The Tun state of a tardigrade

I was wondering How long does it take for a tardigrade to enter and exit the Tun state? I'm doing a thesis on tardigrades for my B.S in biology and I haven't come along any information in the primary ...
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1answer
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Do sharks fart?

My son is 5 and I'm encouraging him to be curious and ask questions of the world around him. He asked if sharks fart and how does it smell? He feels that it would smell of fish and be disgusting. He ...
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1answer
74 views

Why are there so many species of bats?

I read that roughly 20% of all species of mammals are bats. Is there a good explanation for why bats have diversified so much compared to other mammals? Is it because bats' ability to fly allows them ...
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2answers
290 views

How does zoo and laboratory animal feeding work?

What steps are taken to ensure those animals are fed adequately? When dealing with larger populations of animals, how is it ensured that all of those animals received food during a certain time period,...
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1answer
61 views

Is this formula for calulating the energy requirements of pets applicable to all animals?

This website gives the formula: 70M3/4 = Resting Energy Requirement for pets in calories/day, where M is the mass in kilograms. Is this formula correct and accurate, and will it work for rabbits, mice,...
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3answers
219 views

Why are the bodies of the Risso's dolphin covered in scratches?

Risso's dolphin in wild population seem to obtain scratches with aging. What is causing them and what do they mean?
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0answers
52 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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0answers
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How would a biologist handle the great emu war?

How would a biologist handle the great emu war? The Great Emu War, was a nuisance wildlife management military operation undertaken in Australia over the latter part of 1932. Wikipedia states the ...
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1answer
54 views

Why do musk deer have the smallest red blood cells and amphibians have the largest?

What is the reason that musk deer have the smallest red blood cells and amphibians have the largest? Should they not be proportionate to the size of the organism?
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1answer
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Can turkeys run around when their head is cut off like chickens do?

Chickens may run around after their head is cut off if the head is severed near the base of the skull leaving the brain stem intact and missing the jugular vein. This usually only lasts for a few ...
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2answers
5k views

Why is wombat excreta shaped like cubes?

I've heard that wombat excreta is cube shaped, but I don't understand how that can happen. Has anyone studied the phenomenon? What would the evolutionary pressure have been to cause this?
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1answer
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Why do so many parasites infect definitive and intermediate hosts rather than just one host?

Many parasites infect multiple host species, with one host species being the definitive host (where the parasite reproduces), and the other host species being the intermediate host (where the parasite ...
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0answers
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Honeybee relatedness: workers and nephews

This is my first question on this site. If anyone could help me get to the bottom of it, I would be very grateful. I am currently working on a lecture on kinship in animals. It goes without saying, ...
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1answer
98 views

What is the name of this red and blue striped spider (?) - Brazil, Rio de Janeiro

Anyone knows the name of this thing? I found it in our bathroom. It is maybe 10-15 mm. It looks like a spider but the colors left me puzzled
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1answer
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Why is the spirit bear/Kermode bear a subspecies of the American black bear Ursus americanus?

The Kermode bear Ursus americanus kermodei is only found in British Columbia,Canada. The Kermode bear has single nucleotide polymorphism at the melanocortin 1 receptor gene (mc1r) locus which cause ...
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0answers
285 views

Do Squirrels have 4 legs OR 2 arms and 2 legs? [duplicate]

Do squirrels have four legs, or two arms and two legs? I first asked this question many years ago, and it has since unearthed a whole array of conundrums and questions that I have struggled to get a ...
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2answers
77 views

Data for giraffe subspecies population change over the time.

Is there a historical data for the number of animals in the wild for every subspecies of the giraffe and where it could be found?
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1answer
22 views

Is there a record of species kept in zoos worldwide and number of individuals? If yes, can one have access to it?

Looking for the number and species of wild cats kept in zoos to assess the potential pool of individuals available for reintroduction programmes.
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1answer
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How does transition of osmoregulation occur in fishes when they migrate from sea to rivers and vice-versa

From my high school level knowledge I can recollect that there are two types of migration in fishes- From marine to fresh water (like in Hilsa which grows in the marine water but migrates to the ...
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1answer
38 views

Will a dog develop similar feelings with a robot as like human?

I think we are connected to the world by Biochemistry first and then physical and verbal interactions. If a robot feeds a dog regularly, pampers it and cuddles it regularly, would it develop the same ...
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1answer
39 views

What does the hornet do on the ivy blossoms?

We've got blooming ivy growing around a tree. Since several weeks lots of hornets have been whirring in the foliage and I wonder whether they want to feed on insects that are lured by the blossoms or ...
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2answers
133 views

Has evolution made a mistake with prehistoric animals?

Let me start this by saying I have very limited knowledge in biology and evolution. However, when visiting museums and watching documentary movies, I always get impression dinosaurs (and other ...
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2answers
36 views

Cross-species infections

I’ve heard that HIV developed from SIV, etc. I’ve also heard that most species (including most monkeys) can’t get a common cold like humans. So then what causes infections to be able to travel ...
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1answer
73 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
36 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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0answers
48 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
18 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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0answers
38 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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0answers
24 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
123 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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34 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
59 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
225 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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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 ...