Questions tagged [zoology]

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

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2
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1answer
125 views

What Kind of Bug is This

I found this bug in southern Florida in February. It was approximately 1cm long or less, fully extended. What type of bug is this?
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2answers
550 views

Hippos in infrared

Watching Netflix's "Night on Earth", I discovered that Hippos, or at least some Hippos, have quite a weird appearance in infrared. They seem to be covered by IR bright spots all over their body, ...
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3answers
170 views

Are there land animals that use gill-like organs instead of lungs?

Among aquatic, water-breathing animals, gills and other continuous-flow breathing methods dominate over lungs and other storage-based breathing methods as in land animals. Notably, axolotls have gill-...
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0answers
80 views

Is any animal born adult-size?

Size growth after birth seems to be the norm in the animal kingdom (as well as among plants). This makes sense. It's evidently physically challenging for an animal to produce an offspring of its equal ...
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2answers
6k views

What is this animal looking like an Axolotl?

My friend caught a strange looking animal and he's saying it is an axolotl. I keep telling him it's almost impossible, since they are almost extinct in their natural environment and he caught it in St-...
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0answers
28 views

What do oxpeckers eat from thick-skinned hippopotamuses and rhinoceroses?

Noted for their thick skin are both rhinoceroses (1.5 to 5 cm) and hippopotamuses (6 cm). They are further noted for their symbiotic relationship with bird called an oxpecker: Both the English and ...
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1answer
114 views

Identify an animal (Japan, urban area)

I met this animal yesterday while walking along a small river in Yokohama, Japan. It came out of the bushes some 5 meters away from me, but while I was launching the camera app on my smartphone, it ...
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0answers
84 views

Can it always be determined if an animal is a carnivore, omnivore, or herbivore by its teeth or are there exceptions?

Take the panda, for instance, it has canines but it's an herbivore. However, are there are other aspects of its teeth where one could still tell that it's an herbivore? Do the teeth always relay the ...
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2answers
1k views

Help me identify this animal from Bangladesh

I have come across this animal in a facebook group. After one group member identified it as Asian palm civet, I looked at some google images, I am not convinced. Judging from google images, this ...
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0answers
68 views

Do any non-human species have juveniles that cannot communicate with adults?

Human babies take 1+ years to begin learning how to speak (though sign language can be learned a bit earlier1). I know that cries, yells, and other non-linguistic sound are a simple form of ...
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2answers
93 views

What evolutionary advantages does a longer muzzle have against a shorter muzzle and vice versa

Basically I'm curious as to why when it comes to mammalian predators that some like say bears and canines tend to have longer muzzles than those like big cats. aside from their ancestors/evolutionary ...
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0answers
54 views

Eagles carrying off a goat to its nest: How heavy is the young goat? How strong is the eagle? Here is my guess:

I posted a related question, here, trying to identify the exact subspecies of animals. In the documentary El Hombre y la Tierra, a golden eagle carries off some sort of juvenile(?) goat. The Japanese ...
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1answer
115 views

A theory about the possible connection between protists and first animalia

I learnt that organisms within Kingdom Animalia can be either microanimals or (nonmicro)animals. a microanimal is any Kingdom Animalia organism that in general cannot be seen by a human eye without ...
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1answer
14 views

What's the technical terminology for call-and-respond type behaviour?

The groups of some species such as water birds display a behavior that once out of line-of-sight a member will periodically initiate an interaction by make some type of sound, which will be followed ...
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2answers
165 views

Lotka-Voltera predator prey model isocline?

In lotka voltera predator prey model, why do we get a straight isocline with variable prey/predator population for single value of corresponding predator/prey? I understand that we get the prey ...
2
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1answer
128 views

What pigment is responsible for the formation of blue skin color in some animals?

Not long ago I read about Vervet monkey. Here's picture: My question is what causes this blue coloration of the scrotum? I don't mean evolutionary need (e.g. attracting females), but what pigment or ...
6
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1answer
229 views

What specimen of caterpillar is this?

Early this morning, I found this beautiful caterpillar specimen crawling over a leaf: This specimen was found today morning (spring season) in Brazil at Porto Alegre City 30°01′59″S 51°13′48″W. With ...
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0answers
39 views

What is the current status of the taxon Crocodylus raninus?

What is the current status of the taxon Crocodylus raninus, the Borneo Crocodile? See Wikipedia Is it now a valid species, a subspecies of Crocodylus porosus (The Saltwater Crocodile) or merely a ...
2
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1answer
99 views

Helix aspersa or Cornu aspersum

The common garden snail was originally assigned as Helix aspersa and stayed that way for over 200 years. Recently, some biologists assigned it to the genus or subgenus Cornu renaming it to Cornu ...
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0answers
40 views

What ant is this?

I'm really really confused about these ants. Basically they come to our home when grain is on floor or there is something sweet. The lenth is around 7 mm - 10 mm. May vary a bit. The front side is ...
3
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1answer
66 views

What is the effect of self envenomation on reptiles? [closed]

If a venomous lizard bites its own tongue will it die? I've searched the whole internet and I am unable to find a reliable answer on self envenomation.
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1answer
67 views

Are there animal species where some females have greater amounts of male-associated qualities than average males?

In the human species, some women ( a meaningful, though not large percentage) are taller and stronger than the average man. Is a similar thing true in the animal kingdom? Are there some meaningful ...
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0answers
52 views

Which birds are capable of flying both forward and backwards?

Very random question - but it's often said that the hummingbird is the only bird that can fly backwards (for example, https://www.worldatlas.com/articles/which-is-the-only-bird-that-can-fly-backward....
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1answer
187 views

Which bird is this?

Found this today in my neighborhood, my mom says it's a baby vulture and she has seen many during her childhood (in 1970's) while she lived in a small town around 200kms away from our city. However I ...
3
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1answer
99 views

What is this insect? (Location: Hong Kong; size: 8 mm long, 4 mm wide, 2 mm thick; color: black with some brown at center on the top)

What is this insect? (Location: Hong Kong; size: 8 mm long, 4 mm wide, 2 mm thick; color: black with some brown at center on the top) The insect in the picture was slightly damaged after an ...
2
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0answers
26 views

Predatory animal tracking methods

As far as I know, humans are the only animals that use visual references to track prey that is not immediately visible to them. Do any other animals do this? I'm not referring to stalking prey ...
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1answer
37 views

How do we know how long hermit crabs live in the wild?

This article states that hermit crabs in the wild are extremely difficult to track because they constantly change shells and even gender. Later in the article, they say that hermit crabs can live 4 ...
3
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1answer
41 views

Is there an adhesive that could used for larval fish?

I am currently working on an experimental design that requires a larval fish (~ 4mm long) to be affixed on a metal wire tip on its dorsal side. Now, I was thinking of a glue or adhesive to do the job, ...
2
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1answer
128 views

Found this spider in my garden

I found this guy in my backyard. I have no clue what he is, though I'm assuming it's a jumping spider after doing a little bit of searching. For context, I live in Southern California, close to being ...
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1answer
135 views

What is this hard shelled insect in my house?

I moved to a new city in west India last year and I've since, on several occasions, seen this insect on walls and it's usually climbing using its head. It has a greyish long shell and moves in a very ...
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0answers
26 views

is there any kind of paw/pads lines or paw muscle anatomy in animal hands?

just like in the title my question is, is there any kind of paw/pads lines or paw muscle anatomy in animal hands? or its pretty much random? example like mammary lines as bilateral structure that ...
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0answers
19 views

Characteristics of a giant squid’s skin

Is the skin of a giant squid/colossal squid similar to the common squid? Does it possess chromatophores to change color? Or did it lose that ability because of the depth at which it resides or due to ...
2
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0answers
20 views

Can Chilopoda “vocalize” or produce sound for the express purpose of communication, as opposed to sound as a byproduct of other movements?

Is there any species of Chilopoda that can "vocalize" or or otherwise produce sound for the express purpose of communication, as opposed to sounds it might create as a byproduct of other movements ...
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0answers
68 views

Why can't geese regurgitate food?

I saw this harrowing video on how barnacle goslings have to jump off very high cliffs because the parent's can't feed them. The death rate seems high. Why did natural selection come to favor jumping ...
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1answer
82 views

Can someone explain this phenomena?

So many parakeets sitting on a tree with no leaves ?
3
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1answer
30 views

Which fishes produce alarm signals to warn other group members about in coming predators

Atlantic Goliath Groupers are fishes which produce unique low frequency sounds to mate and when approached by predatory fish . The sounds produced when approached by a predator (or even a scuba diver) ...
4
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1answer
111 views

How can cats' claw grow sharper without replacing the claw?

I cut my cat's claws once a month. The claws always have pointed and sharp tip even though I had cut them last month. I assumed cats cannot change the shape of the claw by growing new keratin at the ...
2
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1answer
73 views

Identify this insect (looks like part of a tree)?

I found this insect and thought it was part of a tree at first, then it moved and so I knew it was an insect. I've never seen it before though so I am posting here hoping someone knows what it is. ...
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2answers
63 views

Are these termites

Found a large number of these trapped between my window and the window frame. Are they termites? Location: Eastern Massachusetts, USA
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0answers
15 views

Where can I find extensive information on animal blood types and transfusions?

I'm interested in doing research on different animal blood types, including blood transfusion across different species. What are some resources you could recommend for me?
2
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1answer
68 views

What is a false crocodile?

On the wikipedia page about crocodiles crocodiles are called true crocodiles. Does this mean there are (or where) false crocodiles as well? Crocodiles (subfamily Crocodylinae) or true crocodiles ...
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1answer
353 views

Snake with strange head

This snake was killed in graveyard Peshawar (Pakistan). I just wonder what is this? Is it a snake? Baby crying sounds were reportedly heard from graveyard in Peshawar after months of search the sounds ...
4
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0answers
88 views

Recognise this thing found in beach?

Kindly help me identify this thing found in beach Chennai, India . Size would be just 1.5 cm in diameter..across maximum size. It's shelled and has something inside it. It make a small noise when it ...
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0answers
52 views

Can anyone please identify this?

We saw this leech like worm in Kerala, India. Can anyone identify it for us? I saw it today, 10th September. It's about 6 to 7 centimeters long. It was very still, didn't move while we went close and ...
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2answers
197 views

What species of snake in India “drinks breaths” according to local customs?

In Rajasthan in India, locals know a snake called peevna in the local language. Many of my relatives live there in villages in open deserts. They see many kinds of snakes every day. The word peevna ...
2
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0answers
107 views

Do animals like Seals feel cold on their skin?

Whenever there is a documentary about animals and you get to the colder regions, you will hear about Seals and their layer of blubber keeping them warm. But the skin is on top of the blubber, in ...
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1answer
43 views

Can anyone help me identify the size of a mantis shrimp club?

The mantis shrimp punches with it's club to destroy its prey's shell. I found on the internet that its body size is around 4 inches. What's the size of it's club?
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0answers
52 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.
9
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1answer
151 views

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 ...
0
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1answer
57 views

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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