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Questions tagged [zoology]

The biological study of animals.

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1answer
45 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
43 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
90 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
14 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 ...
47
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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
80 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
17 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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0answers
29 views

Why did this Rabbit behave like this?

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
111 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
59 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 ...
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1answer
53 views

Can someone help me in identifying this specimen I have found?

I came across this specimen which I assume to be belonging to kingdom porifera or coelenterata. Can someone please help me identify it?
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1answer
21 views

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
35 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
21 views

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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0answers
75 views

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
56 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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3answers
1k views

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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0answers
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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0answers
34 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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0answers
26 views

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
41 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
44 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
23 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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0answers
17 views

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
87 views

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
87 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
301 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
64 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
229 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
74 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
39 views

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
70 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
179 views

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
55 views

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
22 views

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
112 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
17 views

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
471 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
82 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?
2
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1answer
23 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
38 views

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
39 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 ...
2
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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
138 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
87 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
38 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
49 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?