Do Pets Celebrate New Year: Ethology and Physiology of Holiday Stress

There is no direct conscious celebration, similar to humans, in domestic animals. However, their behavior and physiology change significantly during the New Year's holidays. From a scientific perspective, this is not a "holiday," but a complex reaction to a powerful stress factor, sometimes with elements of positive reinforcement. Analyzing this state requires an interdisciplinary approach, including ethology, veterinary physiology, and psychology.

Neurophysiology and Stress: Fireworks as a Super-Stimulus

The key negative factor is fireworks and firecrackers. For an animal, this is not just a loud sound, but a complex extreme irritant.

Auditory sensitivity. The hearing of dogs and cats is much more acute than that of humans. They perceive a wider range of frequencies (up to 60-65 kHz in dogs compared to 20 kHz in humans) and quieter sounds. A firecracker explosion for them is not just a "bang," but a painful sound shock that damages the sensitive structures of the inner ear. The reaction of rodents and birds (parrots, canaries) can be even more severe, leading to a fatal outcome from heart rupture (tachycardia caused by fear).

Activation of the "hypothalamus-hypophysis-adrenal glands" (HPA-axis). A sudden sharp sound triggers a cascade of hormonal reactions. Cortisol (a stress hormone) and catecholamines (adrenaline, noradrenaline) are released. This leads to:

Increased heart rate and breathing.

Increased blood pressure.

Muscle tremors.

Pupil dilation.

Uncontrollable urination and defecation.

Behavioral manifestations of fear. The animal demonstrates classic reactions:

Escape/avoidance: attempts to hide in the most secluded place (under the bathtub, in a cabinet), often ignoring the owner's calls.

Freezing: immobility.

Compulsive behavior: aimless walking in circles, excessive licking oneself to the point of forming sores (acral dermatitis).

Destructive behavior: attempts to bite the door, break the window to escape from the source of danger.

Positive Associations: Conditional Reflexes of Holiday Celebration

Not all of the New Year's reality for the pet is negative. Some elements may cause positive excitement through classical and operant conditioning.

Food reinforcement. An abundance of delicious food on the table, leftovers of which often fall to the pets (although this should be avoided), creates a stable connection: "pre-holiday hustle → unusual delicious smells → receiving a treat." The animal may show increased activity and attention to the table, which looks like "anticipating the holiday."

Social reinforcement. The arrival of guests, especially those who love and spoil the pet, means increased attention, games, and affection. The animal (especially a dog) quickly forms a connection: "new people in the house → positive interaction." For social species, this is a strong positive stimulus.

Change in routine. The prolonged presence of the owner at home (vacations) itself is a reward for a bonded animal. It gets more walks, playtime, and shared activities.

Example: A dog, seeing the owner bringing out and decorating the Christmas tree (a process associated with play, interesting smells of pine, and possibly fallen treats), may wag its tail joyfully and show interest. This is not celebrating New Year, but a reaction to a complex of positive changes in the familiar environment.

Species-Specific Features of Reaction

Dogs: Most vulnerable due to developed hearing and social attachment. Large breeds may try to "defend" the territory from "attack" from outside, barking and jumping at doors. Small breeds are more likely to panic.

Cats: Stress is expressed in secrecy, refusal to eat, attempts to hide in an inaccessible place. They may not leave their hiding places for a long time even after the fireworks have ended.

Rodents (hamsters, rabbits, chinchillas): For them, this is a quiet catastrophe. As prey in the food chain, they experience a deadly terror. Heart attacks, abortions in pregnant females, cannibalism are possible.

Birds: Panic flights in the cage, leading to injuries from the bars. It is recommended to cover the cage with a dense fabric to create the illusion of a safe hiding place.

Reptiles (turtles, lizards): Less sensitive to sound, but may experience stress from vibrations and bright flashes of light, disrupting their day-night cycle.

Interesting facts and data
Statistics of escape. Veterinary services and shelters record a sharp (up to 30-50%) increase in the number of lost animals in the first week of January. Animals escape from the noise, jump out of windows, break away from leashes, or jump over fences.

"Medicinal" prescriptions. In serious cases, veterinarians prescribe sedative drugs (based on fluoxetine, alprazolam, gabapentin) or pheromones (adaptive synthetic copy of the mother's pheromones, calming cats and dogs) to animals before the holidays.

Experience from other countries. In some European countries (Germany, Austria, some cantons of Switzerland), the sale and use of private fireworks are strictly limited or prohibited, including for the well-being of animals (both domestic and wild).

Adaptation through desensitization. To prepare the pet, special audio recordings with the sound of fireworks are used, which begin to be played several months before the holidays at a very low volume, gradually increasing the volume and combining it with positive reinforcement (treats, play). This is a method of behavior modification based on scientific principles.

Conclusion

Domestic animals do not "celebrate" New Year. They experience it as a massive, multifactorial event, in which elements of the strongest stress (fireworks, noisy guests) and possible sources of pleasure (attention from the owner, treats) are mixed. Their condition is a precise indicator of an altered environment. A responsible owner, understanding the neurophysiological mechanisms underlying the behavior of the pet, should minimize risks: create a safe haven, refrain from using fireworks near home, do not leave the animal alone, and do not punish it for showing fear. In this way, New Year becomes a test not only for the pet but also for human ability to empathize and scientifically based care for those who share our living space but perceive the world completely differently.
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