Questions tagged [zoology]

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

Filter by
Sorted by
Tagged with
3 votes
2 answers
265 views

Is it possible to pet/groom birds?

I wonder if it's possible to pet a domestic crow, or an owl. Do birds respond to grooming as cats or dogs, for example? If so, then how does one pet a bird?
user1306322's user avatar
  • 1,567
1 vote
1 answer
309 views

When is wing growth in the bat complete and how soon can bats fly after wing growth is complete?

I was reading this paper by Cretekos et al (2008), in which they state that wing development in the bat is not complete until after birth - the wing continues to elongate postnatally. This would ...
blep's user avatar
  • 2,824
5 votes
1 answer
877 views

What limits the size of fish compared to marine mammals?

The largest extant fish species is the whale shark (Rhincodon typus). With a length of 13 meters and a mass of about 20-30 metric tons, the whale shark is relatively small compared to the largest ...
Bart Jacobs's user avatar
5 votes
1 answer
1k views

What kind of caterpillar type bug is this?

I've made a photo using the reversed 58 mm lens and my cropped DSLR: Could you please help? I really don't know where this came from. I found it in Russia.
Sunny Reborn Pony's user avatar
0 votes
1 answer
889 views

Are ape communities more "anarchist" or "communist" in structure?

I am using these terms because we can imagine them quite good, I guess ;) By "anarchist" I mean that the ape wants to live without the rule of others apes(same biological race or other) and he pursue ...
Derfder's user avatar
  • 657
4 votes
3 answers
368 views

Is there an animal which, when eaten by other animal, poisons the predator and gets out of it's stomach?

It was a question in one competition, but it remained unanswered and i am curious about an answer. There was a hint: American bullfrog but i can not find any example of this behaviour on the web.
Guest1984's user avatar
34 votes
2 answers
4k views

Can any animals photosynthesize?

Plants and animals have the following distinct properties: Plants live from solar energy by photosynthesis, they use solar energy to make sugar and oxygen out of carbon dioxide, which gives them ...
Steven Roose's user avatar
  • 1,393
6 votes
1 answer
2k views

Excretion of small kangaroos while in the pouch

How is the excretion of small kangaroos done when they are in the pouch of their mother, fastened onto her teat? My question is what happens with the products; do they accumulate in the pouch?
yo''s user avatar
  • 165
15 votes
2 answers
2k views

What kind of bird species is this?

Every now and then I got a glimpse of this bird which I'm pretty sure is not native to Northern Germany where I live. There are at least three of these birds around but I usually only see something ...
Christian's user avatar
  • 253
7 votes
3 answers
15k views

What's the difference between a plant and an animal?

Are there some living things where the distinction between plant and animal is blurry or unclear? I wouldn't know where to put something like yeast. I also thought of photosynthesis, but then I ...
wim's user avatar
  • 528
7 votes
3 answers
9k views

Why do some animals have 8 Limbs (e.g. Spiders, Octopuses)?

Octopuses have 8 tentacles, spiders have 8 legs. Is there something special about 8? It seems like an animal that needs 360° mobility has 8 legs.
user2993's user avatar
7 votes
2 answers
16k views

Do octopuses have better eyes than humans?

I've read that unlike humans, octopuses have eyes "designed" the "right way", i.e. with the nerve fibers behind the retina, thus getting rid of the blind spot we humans have as well as theoretically ...
Nathaniel Bubis's user avatar
2 votes
0 answers
35 views

Where might I find a list of all recorded instincts by species? [closed]

Where might I find a list of all recorded instincts (possibly with all other attributes) by species? Thanks, Chenz
Crazy Chenz's user avatar
4 votes
2 answers
670 views

Can animals that rely heavily on sonar sense colour?

Apparently there're species around as rely heavily on sonar to sense the world around them. E.g. Bat, Dolphin, Whale ... The humans, and other terrestrial beings in a lighted world are capable of ...
Everyone's user avatar
  • 3,863
5 votes
1 answer
5k views

Will a completely removed cat whisker grow back?

I just accidentally pulled out, while playing, my cat's whisker entirely, follicle and all. I feel terrible as I know she is a kitten and whiskers are rooted deep in a place rich in nerves. I'm ...
Maddy Byahoo's user avatar
6 votes
1 answer
2k views

Are tongues red because they contain blood?

Many animals have red tongues, though not all of them - blue-tongued skinks and giraffes come to mind. Are they red because of the blood (and therefore haemoglobin) in them? It sounds plausible, but ...
Andrew Grimm's user avatar
2 votes
2 answers
849 views

Do any cells change in size or mass as mammals grow?

That is to say, are there cells that, between infancy and adulthood, get larger? Or is all growth done entirely via cell division? I'm wondering if it is safe to assume that the approximate number ...
joseph_morris's user avatar
3 votes
1 answer
308 views

By What Mechanism can Felines Reverse Diabetes?

To my knowledge house cats (and likely other felines) are the only animal able to go into remission after onset of Type 2 diabetes mellitus. I don't have a reference, this has been by peers in my ...
user avatar
4 votes
2 answers
9k views

Difference between mice and rats

What is the actual biological difference between mice and rats? Are they actually the same thing with two different names depending on appearance (are they all mice for instance and we call the larger ...
Simon Carlson's user avatar
7 votes
1 answer
83 views

Is there such thing as "meters per calorie" for living organisms?

I'm interested in learning if there's some way of quantifying the organism's metabolic efficiency associated with movement. It seems to me that some organisms would be more efficient than others at ...
Alex Stone's user avatar
  • 6,517
8 votes
2 answers
1k views

Are tuna fish present in the Baltic sea?

Yesterday my grandmother ate fresh tuna at a friend's party. She swears it was fresh and bought at a local fishmonger. The problem is, that we live in Gdańsk, by the south-eastern side of the Baltic ...
jkadlubowska's user avatar
  • 1,532
2 votes
1 answer
82 views

Diet of free-range herbivores

Giving minimal credence to estimates in popular media of the average biomass of insects/arachnids, etc. in an acre of land, it seems that a "free-range" cow (I don't mean to pick on cows) might be ...
daniel's user avatar
  • 2,799
2 votes
1 answer
4k views

What marine animals exhibit deep hibernation/aestivation?

Do marine animals exhibit deep hibernation/aestivation as land-based creatures do? If not, Why?
Everyone's user avatar
  • 3,863
5 votes
1 answer
7k views

Do all sea creatures that have scales have to have fins?

Do all sea creatures that have scales have to have fins? Do we know of any sea creatures that have only scales without fins? I'm especially interested in fish that have scales but no fins.
MichaelS's user avatar
  • 153
2 votes
2 answers
69 views

What do breeders call the effect when a breed resists modification?

It is impossible to breed a blue rose or a cat with a bulldog shape. This is because breeding is limited by gene variations in the population. What do breeders call this effect? UPDATE I guess ...
Suzan Cioc's user avatar
6 votes
2 answers
1k views

What makes an animal/species suitable for domestication/training?

Humans have domesticated all manner of creatures during the course of their civilization - dogs, horses, several types of cattle, varieties of birds, and perhaps others too. A prerequisite for an ...
Everyone's user avatar
  • 3,863
3 votes
1 answer
3k views

What is the known maximum ranging distance of a bat's sonar?

Bats are known to navigate by using echo-location. How far away can a bat detect an object by its sonar?
Everyone's user avatar
  • 3,863
2 votes
1 answer
196 views

Reattaching body parts

Is there any living organism that has the ability to remove and reattach body parts at will? I'm not talking about regeneration (like in starfish). Say I'm chasing prey, and I decide that my tail ...
Osiris's user avatar
  • 123
10 votes
1 answer
2k views

Why do the feet of the Gecko Lizard not stick to Teflon surfaces?

I have noticed that lizards feet can stick to walls but not to Teflon surfaces? Why is that?
Fyce's user avatar
  • 523
8 votes
1 answer
289 views

Do goldfish really have a 5 second memory span?

I heard that when people place goldfish in another tank, they just forget where they where previously? True or False ?
Fyce's user avatar
  • 523
11 votes
1 answer
1k views

How can an albatross stay airborne for months?

Albatrosses, of the biological family Diomedeidae, are large seabirds allied to the procellariids, storm-petrels and diving-petrels in the order Procellariiformes. They range widely in the Southern ...
Lorenz Lo Sauer's user avatar
6 votes
2 answers
3k views

Can female Drosophila melanogaster lay eggs without males?

Can female Drosophila melanogaster lay egg without males? I maintain our lab stock but find a line that seems to have all females (or all males). The flies have been in the vial for two weeks, but I ...
Pengyao's user avatar
  • 355
4 votes
1 answer
130 views

Does culling badgers restrict the spread of bovine tuberculosis?

The British government has announced that it plans a large-scale badger cull which they argue are implicated in the spread of Mycobacterium bovis - so-called bovine tuberculosis. Any cattle that ...
Poshpaws's user avatar
  • 7,292
4 votes
0 answers
70 views

Help with designing the analysis of radio telemetry study [closed]

I was wondering if there are any spatial ecologists out there who can provide some insight on the trouble I'm having with my Masters research. I am looking at the association a bat species to high ...
Georgia's user avatar
  • 41
9 votes
2 answers
2k views

What is this crow eating, and is it a common part of the corvid diet?

Here's a picture (by Rob Curtis) of a crow carrying and eating the corpse of what looks a bit like a small hawk or falcon: Other pictures clearly show the crow is eating the dead bird. This image ...
Mechanical snail's user avatar
5 votes
1 answer
431 views

How does sex differentiation work in Paracerceis sculpta, the sexually tetramorphic isopod?

Paracerceis sculpta is a marine isopod species known for its unusual reproductive strategy: female: medium-sized; lives in harems run by an α male α male: large; keeps a harem of females β male: ...
Mechanical snail's user avatar
11 votes
1 answer
4k views

Do fish break a water molecule to absorb oxygen?

How do fish separate oxygen from H20 & consume it? Do they break the water molecule and absorb the oxygen only?
Zo Has's user avatar
  • 385
16 votes
4 answers
589 views

Is there any documented evidence for suicide among vertebrates other than humans?

Is there any documented evidence for suicide among vertebrates other than humans? Lemmings not accepted !
Poshpaws's user avatar
  • 7,292
3 votes
2 answers
1k views

Why is the frog genome so much larger than a fish's?

As we have heard in the summaries of the human ENCODE project, 80 per cent of junk DNA appears to have an essential function. Many fish have a genome with only one tenth the size of a usual vertebrate ...
R Stephan's user avatar
  • 3,830
8 votes
2 answers
3k views

Why do stranded marine mammals die so quickly?

Mammals have lungs, so do marine mammals. Nevertheless some marine mammals seem to die rather quickly when they strand on a beach. As they have lungs and can breath while on land, why do they die so ...
Steven Roose's user avatar
  • 1,393
8 votes
1 answer
126 views

Predators faking to be not hungry?

I believe that there are predator/prey combinations where the prey can easily spot that the predator is not hungry and will not try to flee from it. I’m thinking, for example, of gazelles who will ...
Joachim Breitner's user avatar
5 votes
3 answers
782 views

Do dogs have something different about their physiology that allows them to pant without hyperventilating?

I was wondering this as I considered how effective panting would be for humans as a means of cooling.
Chris Cooper's user avatar
4 votes
1 answer
205 views

Is there a way for a 19th century scientist to prove that the octopus doesn't revive?

Say a sophiscated scientist in the 19th century noted that applying soy sauce on a dead octopus leads to movement of the legs, as a result of the voltage differences resulting from the salt in the soy ...
user5479's user avatar
  • 815
6 votes
3 answers
2k views

Is the theory of evolution being disproved by bats?

For some species the Darwin's theory evolution makes perfect sense. I can easily imagine how, for example, the giraffe has evolved to its current appearance: the natural selection was favoring ...
Desmond Hume's user avatar
11 votes
1 answer
2k views

Why does the sex of the parent species determines the species of a hybrid offspring

I've read a little about hybrid animals, and have been amazed by the fact that the sex of the parent species determine the species of the offspring, in some hybrids. A male horse and a female donkey ...
SIMEL's user avatar
  • 1,233
7 votes
1 answer
4k views

Do egg laying animals experience a pregnancy?

Does a female animal that lays eggs experience a pregnancy-like period of time, where she will feel and behave differently as if she were fertilized and her body is prepared to lay a fertile egg, not ...
SIMEL's user avatar
  • 1,233
3 votes
1 answer
68 views

Is there such thing as "biological cycles" of activity/performance/etc in mammals?

I'm looking for some information about the cycles of increased/decreased activity, mental performance or endurance that are related to a mammal's age and the time of a season. First of all, I'm not ...
Alex Stone's user avatar
  • 6,517
9 votes
2 answers
211 views

Does artificial high intensity light damage permanently dark ecosystems?

Popular science features on wildlife typically capture camera images using natural light, or high-speed exposures. This is not possible where the ambient light is extremely poor. E.g. Caves, Undersea ...
Everyone's user avatar
  • 3,863
3 votes
1 answer
4k views

Do cockroaches lay eggs in human flesh when they "bite"?

Recently, I discovered a "bite" by a cockroach, and not only is the "bitten" area red and swallowing, and more specifically, it have a big hole in that area, but when I clean it with hydrogen peroxide ...
user5479's user avatar
  • 815
10 votes
1 answer
479 views

Why would deer continue to cross a river full of crocodiles even though some of them have been killed?

I recently watched a clip on Discovery Channel, where I saw deer crossing a river full of crocodiles, ignoring the fact that some of them would have been killed doing so. Is there a possible ...
user5479's user avatar
  • 815