Questions tagged [biology]

For questions about the biology of a pet. It's physical attributes.

Filter by
Sorted by
Tagged with
1 vote
1 answer
1k views

Why my goldfish red cap lost its head color?

Is it normal that the color fading away..? The water seems fine. Food : Tetra Goldfish Growth and other pellet. It's been 2 months with me.
4 votes
1 answer
762 views

Film on surface of female betta tank

I recently took in one of my friend's male Bettas to treat it for ich (Ichthyophthirius infection). When I brought him back I noticed a film on the surface of her other Betta's tank (this one is a ...
3 votes
1 answer
307 views

Help me sex this Endler's livebearer

It looks like a female (no colors and round belly), but it seems to have a gonopodium organ, a dot on the tail-fin that other females lack and the gravid spots near its vent are fainter and higher up ...
4 votes
3 answers
2k views

Is my guppy pregnant? How could I tell whether a guppy is pregnant?

I recently purchased a guppy and I feel that it's quite fatter and stomach is bulged compared to other fish. Is it pregnant? How could I tell whether a guppy female is pregnant or not?
5 votes
1 answer
460 views

What is a rabbit's field of vision, range and visual acuity?

I have a pet house rabbit, rabbit eyes are pretty much on the side of their head. They also have great big ears. What can a rabbit really see? How well can they see? Can they see 360 degrees?
1 vote
2 answers
3k views

Why did my Oscar change color?

Both pictures are the same Oscar. I was hoping someone can tell me if it normal for him to change colors like that.
0 votes
1 answer
106 views

Is there a way to know definitively if a dog is hypoallergenic?

My partner and I have been looking at getting a new dog; our son has allergies, so we have been focusing on hypoallergenic puppies. We instantly fell in love with the Bernedoodle breed. The problem ...
5 votes
1 answer
3k views

What problems does inbreeding in chickens cause?

I have a big farm (without animals so far) and want to get chickens. They can run freely in the farmyard and the garden, having approx. 1500 m² with grassland, sand, a dunghill and copse. I'd like to ...
0 votes
1 answer
291 views

Does eating garlic repel fleas?

Would (a human) eating garlic repel dog/cat fleas? (I couldn't find any reliable information on this, but I found that studies failed to show the same effect with mosquitos, despite popular belief ...
0 votes
1 answer
194 views

Will every goldfish never stop growing?

I'm confused whether goldfish will never stop growing or not, how much will its genetics affect its size? I want to buy a high quality goldfish, not a bad one.
-1 votes
1 answer
3k views

I have two kittens and need an answer on determining hair length [duplicate]

I have two kittens. One we know will be long haired for sure. The other one I am not sure. Can anyone tell from these two pictures if she will be short- or medium-hair? We know she won't be long-hair.
4 votes
1 answer
4k views

At what age do ginger cats start having black whiskers?

I have an adopted ginger tabby male cat who was found somewhere and his age was estimated by the shelter to be about 4 years old. You may notice that when your cat was young, their whiskers were ...
7 votes
1 answer
129 views

Do cats benefit from human probiotics?

My cat is going through a 4-week antibiotics prescription, and due to it he’s having a bad diarrhea. I have a probiotic supplement containing: Bifidobacterium bifidum Bifidobacterium longum ...
4 votes
1 answer
1k views

My dog has very reflective eyes but no night vision!

I just adopted a dog from a local shelter and she bumps into things at night. She is 5 and very healthy. I am able to see, but she evidently cannot. Her eyes are very reflective blue/green. I asked my ...
2 votes
1 answer
87 views

Difference between small hamsters and larger hamsters?

After having several hamsters over the years, I've noticed that larger hamsters tend to be calmer while the smaller ones seem to be far more energetic and oftentimes more afraid of people. Why are ...
20 votes
1 answer
36k views

Why does my cat hold its mouth slightly open sometimes after smelling something?

On occasion, my cat will sit there with its mouth open, usually after smelling something new. It looks similar to panting, but without the heavy breathing or a protruding tongue. What is the reason ...
3 votes
1 answer
111 views

Is this statement about pets and their food accurate?

[...] pet parents asking if [brand omitted] is causing any of the following: (a) bloody diarrhea, (b) vomiting, (c) elevated liver enzymes or (d) pancreatitis. The answer is: “No.” Veterinarians ...
3 votes
1 answer
302 views

Does frightened cat drink a lot of water?

Today, one of our tenants was on the rooftop. She had her huge teddy bear in hand. At the same time, I went to roof to have a walk with Bhutu (my cat). By seeing the teddy, Bhutu was frightened to ...
3 votes
2 answers
923 views

Can dogs see things that humans can't?

The other day I was sitting in my lounge alone and my dog got up and started growling and barking at the air. She wouldn't stop whining and wouldn't take her eyes of this spot for ages. Can dogs see ...
1 vote
2 answers
2k views

What is my male apple mystery snail doing?

After a day, when I turn on the fish light, I see him rush to the glass. He goes up... and does what is in the picture! He keeps getting farther and farther off of the glass! If he falls he goes back ...
-1 votes
1 answer
219 views

Which sex of rabbit defines the size of the kits and which one defines the quantity?

I need to know is it the doe or buck that define the size and quantity of rabbit kits.
4 votes
1 answer
609 views

Can eggs surgically removed from a pregnant platy fish still hatch?

My mom had a pregnant Mickey Mouse platy fish, but she just died today. We performed a little fishy c-section and got about 15 eggs out of her. Is there anything I can do to ensure they still hatch ...
2 votes
1 answer
1k views

Has anyone touched a male lion? Is the lion's mane just like stringy human hair? [closed]

If anyone has ever gotten the chance to touch a male lion, does his mane feel more or less just like human hair?
6 votes
1 answer
721 views

Do non neutered cats shed more hair?

I recently had a discussion with a pet owner and he claimed that non neutered male cats shed more hair due to anxiety. Is it true? I have been feeding him high quality food but within a few days his ...
3 votes
3 answers
259 views

Why do cats have whiskers?

Whiskers definitely make the shape of a cat's face. I have always wanted to know why cats have whiskers.
5 votes
2 answers
390 views

Do the colors of a cat's coat correlate with its personality?

I've heard some people say that a cat's coat color says a lot about its personality. I think it's fairly common to think that tortoiseshell cats have attitudes ("tortietudes"). Is this urban ...
3 votes
1 answer
2k views

Why has my platy fish - which is a livebearer - laid eggs?

My platy was showing all the signs of being pregnant, so we had it checked and she was. But when it came to the day, she had eggs in a sack and it took two days for them to come out completely. ...
4 votes
2 answers
101 views

How do windows impact health considerations of sunlight for pets?

I heard, the goodness in sunlight that helps people make vitamin D does not pass through windows. Is this true, and if so, does it impact pets as well? If my pet only gets sunlight through windows, ...
6 votes
1 answer
351 views

What is cats' color vision?

A couple of existing questions, answers and comments How can I train my cats to only eat from their own bowls? and Can cats see optical illusions the same way we can? involve cats' color perception. ...
3 votes
1 answer
80 views

Do cats shiver when they have a fever?

Just like us humans, do cats shiver or seek warmth when they have a fever? My 6-yo domestic short-haired cat likes to sit in our hot tropical sun for a long time and I’m worried she may get dehydrated ...
8 votes
1 answer
2k views

How frequently do cats lose their whiskers?

Does anyone know how frequently cats lose their whiskers? Is it natural shedding, like their hair, or is it much less frequent? I ask because I have two cats and am randomly find a whisker here and ...
4 votes
1 answer
1k views

Inbred kitten -- What are the risks?

I have a 6 week old male kitten; his mother had a litter before his, and the person who owns her kept one of them, so the son and mother bred. She only had three kittens. One passed away unfortunately,...
3 votes
1 answer
1k views

Why did my dog's ears start to flop?

I have this dog who has standing ears, and now at almost 10 years old I just noticed the other ear did not have that structural support to stand up anymore. Is there something wrong with the dog or is ...
6 votes
1 answer
101 views

Glycemic load for foods with respect to dogs

Have there ever been conducted tests on how fast dogs digest various foods? That is, to determine the glycemic load of various foods with respect to dogs?
3 votes
1 answer
219 views

I really want a guinea pig, but I think I am allergic to rabbits

I always wanted a Guinea Pig as a pet. One time I cared for a friend's rabbit while she was vacationing. I had a mild allergic reaction to it. So would I be allergic to Guinea Pig? From what I found ...
7 votes
1 answer
248 views

Hens and no rooster: what happens to hens and their unfertilized eggs?

I looked for the answer, but didn't manage to get clear information. If I have a bunch of hens, but no rooster, hens will lay unfertilized eggs (as far as I know). From what I read, hens will brood ...
3 votes
1 answer
7k views

Gourami breathing at water's surface

I've had a pair of Pearl Gouramis and another pair of Opaline Gouramis for a few months now and, unlike any of my other fish (Tetras, Rainbow, Loaches), they spend time at the surface breathing the ...
7 votes
1 answer
860 views

Is it safe to get my cat on X-ray machine?

My vet advised having an X-ray taken of my cat's paw after she was stomped upon by my reckless neighbor who I am not speaking with anymore. She is always coming to drink my coffee and take my food, ...
7 votes
1 answer
502 views

Can big cats retract their claws?

Some people do have exotic pets like tigers. I was watching a video where a man got his tigers to lean on his shoulders standing up. It got me thinking, would he get scratched? I couldn't see their ...
2 votes
1 answer
65 views

Hairloss in cat, which appears to be anomalous

I have a one-year-old, male, white Scottish Straight cat which is in good health, but has been losing hair for the past 6 months and still is. In my experience with other cats, in this case the amount ...
17 votes
1 answer
11k views

Does picking up an adult cat by neck cause them to be paralyzed like kittens?

When kittens are picked up by the neck by their mothers the kittens become temporarily paralyzed. Is this also true for adult cats if a human was to pick them up the same way?
6 votes
1 answer
320 views

My rabbit survived botulism poisoning; is she now immune to it?

According to this article by the Ontario Minister of Agriculture, Food and Rural Affairs; an inactivated toxoid is used to vaccinate horses against botulism. Though it does call for an annual re-...
4 votes
3 answers
22k views

Betta with black dots on fins

My Betta seems to have recently developed little black dots on his fins on both sides about a week after moving him from a small bowl to a little Top Fin 2 gallon (7.6 L) aquarium with a heater. He ...
10 votes
1 answer
2k views

Is whisker layout in a dog a constant?

Is the layout of whiskers in a dog constant over time, or do whiskers fall out and regrow in different spots? This is a lost dog situation, and there is a foundling that looks very similar but whisker ...
1 vote
0 answers
127 views

What are the effects of an all meat diet in cats? [duplicate]

Is there any harm in this or do I need to add nutrition to the diet? Also, how long would the health effects of a harmful diet take to appear and what are these, if any?
2 votes
2 answers
11k views

What is this white layer growing in the snail shell's entrance?

My snails have been making a layer of... something(?) around the entrance to their shells. I don't know what it is. They remain in their shells until I remove the layer, which is really bothering me....
5 votes
1 answer
134 views

Iris of my cat's left eye is discoloring on the edge

A few weeks back, I noticed my cat's left eye's iris is discoloring from the corner (brownish red, iris is gold color). She is 8 years old, female. She has no other complaint whatsoever. I know I ...
1 vote
1 answer
182 views

How to increase goldfish color?

I was fooled a bit when buying this one fish, when the fish arrived it looks not so appealing to me... is there something I could do to brighten it's color or should I just ask for a bit refund? I ...
1 vote
0 answers
66 views

Why my aquascape shrimps died

Yesterday on around 5 pm I put my two of 10 g aquascape outdoor, my intention is so I don't have to use LED light during the day. Right at the next morning on one tank, many of my shrimps died, but ...
3 votes
0 answers
65 views

How can I tell if my goldfishes' popeye is due to stunting or an infection?

I have three goldfish in a twenty-gallon tank. I know it's not the best set up and I would like to move them to a bigger tank when I get the opportunity, but they seem happy and healthy enough. I have ...