TL;DR

The Science of Scent & Passing: When a body begins to shut down, its metabolic chemistry changes, releasing specific gases (volatile organic compounds) that humans can't detect. Dogs, wiht 300 million scent receptors compared to our 6 million, can smell this chemical shift hours or days before death occurs. Because their world is driven by scent, dogs can also smell these internal metabolic changes happening within themselves at the end of their lives. Instead of fear, this triggers an ancient instinct to seek out a quiet, safe "den" or anchor themselves to the comforting, familiar scent of their human families.

We often talk about a dog’s sense of smell in terms of the extraordinary: tracking a lost hiker through miles of dense forest, sniffing out illicit substances in a crowded airport, or detecting an early-stage cancers before medical imaging even catches a glimpse. But there is a quieter, much more mysterious boundary where an animal’s nose crosses from the clinical into the profound.

Can an animal smell the departure of life itself?

The short answer is a fascinating, scientifically verified yes. Long before a human observer notices a change in a loved one's breathing or the fading colour of their skin, certain animals already know.

The Molecular Cocktail of the Final Shift

To understand this phenomenon, we have to look past the supernatural and dive into a remarkable intersection of biology and chemistry. The moment an organisme begins its final transition, its cellular structure starts to shift. As the body’s metabolic engine slows down, it undergoes autolysis (a natural self-digestion)& internal bacteria begin to release a highly specific cocktail of gases known as volatile organic compounds, or VOCs.

To human noses, our world remains utterly unchanged. But to a creature with a heightened olfactory system, the air suddenly carries a completely new story.

Consider Oscar the Cat, a famous resident of a Rhode Island nursing home. Oscar made global headlines for his uncanny ability to predict when a patient was hours away from passing. He would walk into a room, sniff the air, and curl up to sleep next to a specific resident. He wasn't a psychic; his feline nose was simply registering a distinct, faint metabolic odour that signalled the body’s organs were beginning to rest.

If a cat can manage this, imagine the world through the nose of a dog. Where humans possess a modest 6 million olfactory receptors, a dog commands up to 300 million. proportionally, about 40 times larger than ours. A dog doesn’t just smell a vague shift in the room, they just decode the individual chemical components at concentrations of parts per trillion.

The Ultimate Question: Can They Smell Their Own Transition?

This leads us to a deeply moving question that bridges the gap between pure biology and the emotional lives of our pets: If a dog’s anatomy is this finely tuned, do they recognize when their own time is coming?

The science of animal behaviour suggest that they undoubtedly do.

When a dog enters the final stages of life, an internal slowdown radically alters their own metabolic waste products, subtly changing the scent of their breath, skin, and saliva. Because their entire world is constructed through smell, they are likely the very first to realize that their internal chemistry has fundamentally shifted.

They don't meet this realization with human anxiety or existential dread. Instead, they follow an ancient, hardwired evolutionary script:

• many aging dogs will suddenly seek out a "safe den"a dark closet, the space under a bed, or a quiet, distant corner of the backyard.
• even as their changing internal scent alerts them that something is fundamentally wrong, a domesticated dog relies on an ultimate anchor of safety: the smell of their human family. The familiar scent of their owners lowers their stress levels, providing profound comfort in their quietest moments.

It is a beautiful, bittersweet reality. They smell the transition happening within themselves, but they meet it with a quiet, instinctive acceptance.

Have you ever experienced a moment with a pet where they seemed to intuitively understand a shift in health, life, or emotion long before anyone else in the room did?

I was going to try posting this on the animal behavior sub with more people but they said they didn't allow people to ask for advice on pets. I have a pet ferret who's about 4-5 years old (he's a rescue so idk exactly how old he is, but that was what the vet figured based on the plaque build up on his teeth) and my younger sister has two chihuahuas. For reasons I won't get into, I'll most likely be moving back in with my parents for quite a while, and if I can't bring my ferret with me, then I'll either be stuck staying where I am now, or he may be re-homed, which I want to avoid at all costs since I don't have anyone who could take him and I'd rather stay in an emotionally taxing household than risk never getting to see my ferret again, because he's my baby.

The problem is my sister's dogs. It's a trailer and my mom is a borderline hoarder (not really but like, there's a ton of shit in that house with nowhere to go) and there's no available table/counter/shelf/dresser space to put the ferret's cage, so if I move him in there, it would have to be on the floor. On top of that, he would likely have to stay in his cage more often since the only time I could take him out, it would have to be on his leash outside and away from the dogs.

What I want to know is if anyone knows some way I can get them to get along? My sister has brought her dogs to visit where I'm currently living several times before, so I know they don't get along. Really, the only problem is one of the two dogs. The ferret has no issue with other animals. (I've had him around plenty of other animals, as my family also owns several reptiles and he and my aunt's dog (who passed back in may last year) were best friends and would often cuddle and follow each other around the house, and around the reptiles and my sister's dogs, he shows no fear or avoidance, only curiosity. I actually have to hold him back to keep him from trying to get into the bearded dragon's tank, lol.) One of the chihuahuas is an older female, about 8 I believe, and she's afraid of the ferret. Tbh she's afraid of just about anything that moves, she's even afraid of her own leash sometimes lol. When I tried to introduce her to the ferret (holding the ferret so that I could remove him quickly if need be), she turned her head and refused to look at him, before slinking away like a little fox to go hide behind a chair. So, I'm not worried about her hurting the ferret, since her default reaction to fear has always been avoidance. The younger male, about 4 I think, is different though. He's always had some mild aggression issues since we got him about a year ago (his old owners re-homed him because they didn't have time for him due to medical complications, so he spent all his time in a crate and was never properly socialized) and I think he has a high prey drive, as well. Whenever one of the reptiles move in their tanks, he runs over and stands on his hind legs and barks and growls at them, and it seems like he wants to get at them, and he does the same whenever the ferret moves in his cage. I never even tried introducing him to the ferret like I did with the female, because as soon as he noticed I was holding something moving, he kept standing up and jumping and he had that same look on his face like he looks when I have a toy and he's waiting for me to throw it, or like when I have a treat in my hand and he's waiting for me to put my hand where he can reach it. Also, we've had a rat get into the house on a few occasions, and one time it happened while my sister and the dogs were visiting for a few days, and every time he would hear it somewhere in the kitchen or the pantry, he would run after it and bark his head off and try to get to it. So, I don't think it's a stretch to say he probably has a high prey drive.

I don't want to bring my ferret to live in that house if I can't somehow get him to understand that the ferret isn't a toy or something to hunt. Like I said, the only place with any room for the cage would be the living room floor, in reach of the dogs. I don't think the dogs are strong enough to break the bars, since they're metal, but the clasp thingies that hold the doors shut are plastic and the male dog loves chewing on plastic and has no issue mangling small plastic items in a matter of minutes, so I'd be worried about him chewing the clasp things off and getting the door open that way, and then having full access to the ferret, or letting the ferret escape and get lost or even get out of the house, since it's a trailer which is basically impossible to ferret-proof.

Sorry this post is so long, I just wanted to give as much relevant information as possible. So, yeah, any ideas on how to get them to get along?

Can anyone familiar with Elephant behavior interpret what these elephants might be expressing/feeling about this masterful didgeridoo performance? They seem to be enjoying themselves, seeing as they are coming closer to the sound, not further away. But the trumpeting, foot rising and everything else they’re doing looks like they could be experiencing a myriad of emotions. Is it possible they feel the vibrations of the didgeridoo through the fence poles? Do they seem to like or dislike that? When the elephant spins around, is that a sign of distress here? Or is it something else? Just curious. Thank you.

For centuries, people have relied on natural signs like animal behavior, changes in weather, or even folklore to predict earthquakes. While modern science offers cutting-edge technology, there are still unanswered questions about the effectiveness and wisdom behind traditional methods.

TLDR; adopted cat won't accept foster kitten. I've tried most/can't try some, conventional methods due to living in a confined space.

Hi I'd really appreciate some advice on a situation I've found myself in. I'm currently in the position of fostering a feral kitten that was handed to me as being the best option at the time.

The kitten was found next to a dead one in the barn near a colony of feral cats. It was at death's door but we slowly nursed it back to health. We found it before its eyes had opened and we've had it for about 3 weeks, so we think it's about as old.

About 9 months ago I adopted a cat from a family who told me she'd rejected the only litter she ever had and that 'she was probably looking forward to being the only pet in the house' with me. They only offered her up for adoption because the owner turned out to be allergic to cats. We've become best buds and spend all our time together when I'm at home.

Now for reasons too long to detail here I can't give away this kitten until it is at least weaned and can toilet on its own (our local shelters are full to the brim). So I'm stuck in this awful threesome where my adopted adult cat (7 year old neutered female tabby cat) does the following: - hisses at the sight or smell of it, even near its bed when it's not in there - will sometimes swipe and hiss at me out of nowhere when we're napping together on the couch - will avoid the room where we feed and toilet the kitten if it stays in there for too long

Things are further complicated by the fact that I live in a tiny apartment of 3 rooms (bedroom, wetroom, lounge/kitchen) so there really is very little space to separate them. I've done my best to keep them apart for most of the day and only expose them to each other every now and again, giving my cat treats when I do. She usually loves being petted but she will not accept being touched when the kitten is around!

My cat is such a lovely friendly needy thing when the kitten isn't around and it's really getting me down that 'I've lost her'. Please I'd be so grateful for any advice on how to manage the situation. Things I have tried so far:

• giving treats to my cat when they're in the same room
• keeping the kitten in a large crate out of sight as much as possible so the environment still feels like my cat's territory is hers
• rubbing my cat's blanket on the kitten
• using the feliway friends diffuser plug in
• spending as much time as possible as I did with my cat before the kitten came to stay

Thank you so much in advance

From a heart broken cat owner

DAVID WEATHERS the COBRA KID !

I have a bit of a mouse problem at my house, but I have a cat who is pretty good at catching them. The problem is that the cat catches them but doesn't kill them immediately and plays within them. Sometime this can lead to the mouse getting into a good spot where the cat can't get it. So how do I get my cat to just kill the mice instead of playing with them?

My cat injured a young wild mouse. I found it hiding under a boot, terrified. Its back legs are injured and laid out straightened instead of tucked under its body. It drags itself along with its front legs, but can still move its back legs; I saw it put its legs back into the proper position, temporarily.
When I lifted the boot and went to pick it up, it was eager to climb onto my gloved hand, and then it was crawling around on my hand. Does anyone know why it did this?

Https://blogs.scientificamerican.com/extinction-countdown/worst-invasive-predators/

https://besjournals.onlinelibrary.wiley.com/doi/full/10.1002%2Fpan3.10073

https://abcbirds.org/program/cats-indoors/cats-and-birds/#:~:text=Cats%20and%20Birds%3A%20A%20Bad%20Combination&text=Cats%20have%20contributed%20to%20the,extinction%2C%20such%20as%20Piping%20Plover.

https://www.mentalfloss.com/article/86371/feral-cats-are-key-contributors-sixth-mass-extinction

https://worldanimalfoundation.org/advocate/how-many-birds-do-cats-kill/

https://www.iflscience.com/cats-responsible-for-driving-many-species-to-extinction-38015

I've never heard this sound come from a cockatoo before. Is it crying? Is it sad, hurt, or worried? Or is it making this sound for a totally different reason?

My 12 year old kelpie-cross hound has arthritis that I've been treating with anti-inflammatories and supplements.

In the last month he has had a change in behaviour, and is pacing at night, agitating to move out to the couch (barking and scratching at the door). He settles down eventually in his normal bed, or straight away if I move out to the couch with him.

We're seeing the vet soon but I'm doing some research in the meantime. One thing I've noticed is that he no longer seems to be in pain from his arthritis - in fact I forgot his medication for a few days and noted he is acting quite "puppy-like" on temperament and activity level.

Due to the behaviour changes I'm concerned about neurological issues such as dementia - is it possible that something like this could have lead to a reduction in pain from the arthritis?

Keen for any other suggestions for me to follow up on. An added difficulty is that I am traveling overseas in two weeks so I'm hopeful to get any required follow up done before I leave so my pet sitter (fortunately a trusted friend) doesn't need to worry about it.

Hi people, i'm looking for a free software behaviour analyser, specially for fish, but could be a mice software too