Questions tagged [zoology]

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

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21 views

What kind of skull is this-I found it on the beach in Cape May

I am hoping someone can help identify this skull! We found it on the beach in Cape May. The skull size is about 4 inch in length. Thank you.
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What kind of fish is this white blue-stained fish?

This fish has been spotted at the Great Barrier Reef near Cairns (Queensland). I put a big effort to find it via Google but never could encounter anything similar. I have also made an attempt to find ...
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1answer
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How fast do hummingbirds fly?

Hhhmz! A hummingbirds flew past me while I was in the garden and yet, it still managed to halt perfectly in front of a blooming flower nearest to me. Just as soon I began to wonder, how fast do ...
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1answer
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What are some examples of animals who return to their group when threatened?

Based on my (limited) understanding, some types of animals use the power of numbers for protection. I assume, then, some species instinctively respond to threat by immediately seeking out and joining ...
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How do feral pigs get their tusks back?

Domestic pigs and wild boars are the same animal. There's virtually no genetic difference between the pigs kept on farms and those roaming in the wild. As I understand it we have selectively bred our ...
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Which other sense organs aside of eyes/ocelli do Tardigrades have?

Tardigrades have eyes/ocelli as sense organs. How about the other senses? Do they have some organ for hearing? Do they have some organ for smelling or tasting?
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Why do herbivores have no horn(s) on the butt? [duplicate]

I saw few videos of hunting lions on youtube. Usually one lioness (of a group) will jump on the butt of a victim and tries to bring it down on the ground. The victim, for example a buffalo or kudu ...
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35 views

What is this African bug?

This is an arthropod I found in an apparently abandoned mongoose burrow in the Maasai Mara game reserve, Kenya: That was the best photo I could get of it. From what I could tell, it had six legs and ...
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What is the volume of a chicken's heart and goat 's heart

What is the volume of a chicken's heart and a goat's heart? How much blood can be in their heart at a given time (baby goat's min, both avg, biggest chicken's max)? [this question is more important ...
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18 views

How do Joeys of different ages safely share a pouch?

I recently learned that female kangaroos typically rear multiple young at once, even producing different types of milk for neonatal joeys and older joeys. I've read that the older joey can enter and ...
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What is that? Dry brown fungus? See photo please

It has appeared two days in a row on my balcony, at exactly the same place. There's nothing near that can give me a hint of what it is. The birds can access the place easily. It's an inch in size, it'...
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Standard textbooks to complete a comprehensive undergraduate degree in biology [duplicate]

I am a graduate student of mathematics, with an interest in ecology and evolution, and would like to learn undergraduate biology, at the level at which it is taught at one of the top 30 schools in the ...
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1answer
64 views

Do male skunks have teats?

Simple question. Do male skunks (striped skunk, eastern US/Canada if it matters) have teats? Occasionally want to identify road-kill, but don't know if teats are diagnostic for females. I believe ...
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1answer
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What is the function of spongin in sea sponges?

Sea sponges (Porifera) use different types of skeletons to support their structures. Some skeletons are built from minerals, some are built from proteins like spongin, and some use both. My question ...
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Anybody know of any sources/papers on wild animals identifying birds by their calls/sounds?

I'm doing a literature review about identifying birds, and was hoping to find some examples of animals being able to identify birds by sound (eg a mouse knowing the normal call of a sparrow is not the ...
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Knee directions

art student with very little knowledge of biology here. I was thinking about the designs of mythical creatures and I got stuck on the topic of knee directions, and couldn't work out the appropriate ...
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(How) do horizontal pupils dialate?

I was looking at mongoose eyes in particular, but my understanding is: Circular (human-like) pupils simply get larger/smaller depending on light levels, no change in "shape" Vertical slit (cat-like) ...
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Is it safe to feed the squirrels?

I hope this question fits here, I haven't found another community where it would fit. Two years ago I was in a hotel in Sri Lanka (south-western coast) and in the hotel gardens there were a lot of ...
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1answer
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Reptiles are a paraphyletic group because?

Here is a question I am trying to find the answer to Reptiles are a paraphyletic group because... ? A) They include worm lizards, which have no limbs B) The group doesn’t include birds ...
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1answer
70 views

Larva of Halyomorpha halys?

I just found these small insects on a Saponaria. After search, it could be Halyomorpha halys, but I am really not sure. Can anyone confirm? If so, should I kill them as they are considered as ...
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1answer
21 views

Why do leeches lose septae due to parasitism?

So I found this piece of information in my textbook without a proper explanation, and I can't seem to find the relation between the two.
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40 views

Inbreeding depression in Gouldian Finches

I currently breed Gouldian finches, including the yellow mutation. I was lucky to breed 6 youngsters including pure yellow and yellow split. How far can I interbreed the offspring (i.e step brothers/...
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1answer
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What is this little owl-like bird?

I was walking outside (location: Netherlands) and just saw this little bird: Unfortunately I had to take a long range picture with my cell phone so the quality is quite bad, however I hope still ...
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1answer
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If coelocanths are more related to humans than groupers -does a Coelocanth's DNA literally have more sequences in common with a human than a grouper?

Would a coelocanth and a human still have more sequences in common than a coelocanth and a grouper? Would the coelocanth and human dna basically "look" more similar than either would to a ray-finned ...
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1answer
83 views

Can birds touch their wing tips together either in front or behind (not above and below)? [closed]

Can the tips of a birds wings touch so that it would form a ring if view from above or below? I suspect it might be a bird of prey and at the moment it is picking something up from the ground but I ...
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2answers
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Bug Identification: Tiny Bugs in Fairport NY

We have been finding a ton of these tiny bugs (pin head size or smaller) outside on our patios, outdoor tables, on the grill, etc. What are they and how do we get rid of them?
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1answer
129 views

Bug Identification: Tiny Bugs

I have seen these on my hands recently and I am wondering what they are. Urban Setting. South Central Pennsylvania.
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1answer
88 views

What kind of weird little insect is this?

What kind of insect is this? I found it in my work room. I live in the city of São José dos Campos, São Paulo, Brazil
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1answer
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What kind of bird is this?

Found in southwest Michigan. It appears to have fallen from a nest.
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Identify round, green, flying insect with spikes in South Carolina (USA)

The tables have turned -- I need some help IDing an insect: I've been unable to identify an insect that I came across about 6 years ago in South Carolina (USA). We were doing a vegetation survey in ...
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1answer
39 views

Can mammals and/or birds see / detect infra-red light?

Wondering if there is any evidence that mammals or birds eyes can detect light emitted in the infra-red? The reason I'm asking relates to the use of nest cameras to detect predators, using infra red ...
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1answer
56 views

is this a brown recluse spider?

What kind of spider is this? SE Michigan, light brown color, second picture less focused but w tape measure for scale. Thank you!
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31 views

Black and orange spider, what is it?

Found in Alexandria MN, on sidewalk. Small, fast little spider.
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1answer
65 views

Want to know about a creature which bite me

I am Sachin from MP India. Few minutes back I have gotten bite by a creature. What is its name? Is it harmful if I got bitten by it? Feeling little pain there.
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1answer
64 views

How far can parrots fly without needing to land?

This is for a story I'm writing. I can't find any information on how far various parrot species can travel without needing to land-- the closest I could find is this page saying that a macaw flies up ...
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1answer
46 views

Help with jellyfish species identification

Our research group (Evolutionary Genetics Group, University of Zurich) has received a letter from a special needs child who has kindly asked us to identify three jellyfish species. Unfortunately, the ...
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Is this a Zelus luridus?

I found this little bug on my bed and I got curious to know what it was, I did some researches and then I noticed that it is very similar to Zelus Nymph but I can't be sure of it. Can you confirm it? ...
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0answers
57 views

What animal is this? A bee? red mason bee? (Bee-like with brown/orange fur)

The picture was taken at the Bodensee (Lake Constance) in Southwestern Germany in June 2019. I tried to Google "Bee with brown fur", but the only thing that came up was a red mason bee, and the ...
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1answer
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Are hybrid-species individuals considered to be of the same species as their parents?

This question arises given the definition of father and mother as seen in the Spanish dictionary composed by the Royal Spanish Academy. Basically it says that a father/mother is a man/woman or a male/...
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1answer
113 views

What is this insect in a cocoon climbing a web?

I found this thing hanging from the framework of my garage yesterday: The size of the object in the picture was about .75 inches tall by maybe a quarter inch wide. This was taken yesterday in a ...
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0answers
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Is there anything that can tell me precisely how the cross sectional area/radius of a snake changes over length?

I am trying to 3D model a green anaconda which I thought would be simple, then I realized there is actually this very gradual change in thickness from a minimum around its neck to a maximum somewhere ...
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27 views

What was the cause of some egg-laying animals evolution to animal-laying?

Is there a specific reason for this evolution? Are no egg-laying animals more complex beings so their embryonic development requires more time and better nutrition conditions?
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1answer
66 views

What is this seaside thing?

I found this on the sand and I do not know what is it? I thought it is sea devil, however I checked google and it is not. Can someone tell me what is it(its name )
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Any arthropod with non-sprawling limbs?

Are there arthropods with semi-erect or erect limbs? If not, could it be because of interference between more than four limbs or any other constraint?
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2answers
108 views

Help identifying a weird creature

Okay, so there is this weird creature, which has been crawling around our house. I can hear it moving around, and it's especially active in the dark. I've however been able to take a picture of it. If ...
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What type of maggots are these?

After leaving some hot dogs out in the sun at a pool party, we brought them inside and refrigerated them. I took them out today without thinking and microwaved them. When I put them on my plate, I ...
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1answer
40 views

What species of butterfly/moth is this please?

What species is this please? It's really tiny. That's an oregano leaf. Location: United Kingdom
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3answers
136 views

Do birds grieve and feel emotion?

Crows are surprisingly clever with tool making/use and even understanding displacement water over sand! Clearly there's some relatively high level cognitive processes going on up in those avian brains....
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1answer
89 views

Can you identify this red insect?

Location: Lansdowne, Uttarakhand, India Date: 27 May 2017 Time: 5.33 pm The insect was found walking upwards on a plastic table. It was about 3-4cm long, as far as I remember; its been a long time ...
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1answer
55 views

Aquatic Snail Identification

I can’t for the life of me find an identification of these snails. They’re thriving in brackish water, but may be freshwater naturally. They’re about .8cm long at their largest. I believe they have ...