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Why do animals go crazy during a full moon?

Author

Noah Mitchell

Published Jan 09, 2026

Odds are, it's not actually the moon or its magnetic pull that's making animals act out, it's the light the moon produces. A full moon is more than ten times brighter than even a half moon. It stands to reason that more light might make our pets a little more active - and a little more prone to injury.

Why does a full moon affect animals?

A variety of rationalizations explain these effects: A full moon can provide a time cue for synchronized events, facilitate visual communication in the nighttime, or just scare normally night-active nocturnal animals into the shadows. Here are six of the most unexpected ways the moon affects animal behavior.

Do animals act crazy on a full moon?

Many pet owners report odd behaviour from their animal companions when the moon is at it's fullest, ranging from nervous to completely reckless. During the full moon period, vets see a 23% increase in cat visits and a whopping 28% increase in dogs! If you're wondering why and how this happens, you're in luck!

Why does my cat go crazy on a full moon?

The theory is that, although there is more light, there is still not that much light, so the risk of injury for your pet goes up because they can't see as well. This may explain the phenomenon of increased pet emergency room visits during the full moon.

Do moon phases affect animal behavior?

Behavior can be tied to the lunar phases. GUIDING LIGHT Moonlight affects animals in many different ways. For wildebeests (one shown), which are vulnerable to nocturnal attacks by lions, moonlight can be an indicator of how dangerous the coming evening will be.

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Are animals more active during full moons?

Doodlebugs — the larvae of dragonfly-like insects called antlions — actually dig larger holes for trapping insect prey during full moons. This changed behavior may be the result of their insect prey becoming more active under the light of the full moon, making the extra effort of digging larger holes pays off.

Does the new moon affect animals?

Animals seem to naturally tune into the New Moon phase, understanding it is a time to chill even though this can be a challenge. The animals' senses are heightened and sensitivity will be seen in each New Moon phase.

Do cats act weird during a full moon?

When there is a full moon cats may change their behaviour and seem a little more mischievous, but some might also be more likely to hide, meow, or just be noisier on the whole. Cats are not the only animals influenced by moon phases — dogs and birds change their behaviours too.

How does the moon affect humans?

So, does the Moon really affect our health and mood? There is no absolute proof that the Moon affects human mental and physical health, though its effect has been observed in other organisms: corals for instance appear to time their spawning based on the lunar cycle.

How does the moon affect the animals?

For many animals, particularly birds, the moon is essential to migration and navigation; others time their reproduction to coincide with the specific phases of the lunar cycle.

What animal symbolizes the moon?

Rabbit or hare

In Pre-Columbian Mesoamerica the rabbit is often associated with the Moon, for example, Tecciztecatl, the Aztec moon god, was pictured as an anthropomorphic rabbit. Frequently, the Maya moon goddess is represented with a rabbit in her lap.

Why do wolves howl at the full moon?

Why do gray wolves howl at the moon? We hate to burst your bubble, but it is a myth that wolves howl at the moon! Howling may be heard at night, but it is not a behavior directed at the moon. Instead, it is used as a social rally call, a hail to hunt or as a territorial expression.

Why does my dog howl on a full moon?

Hence the image of a lone wolf on a hill, howling against the backdrop of a full moon. In the wild, it's usually a night time activity. Maybe dogs feel lonely then and are trying to communicate to other dogs. Some dogs, like hounds and sled dogs, seem more prone to howling than others.

Do more animals get hit by cars during a full moon?

Nocturnal animals alter their activity levels depending on the phase of the moon. Researchers found a correlation between the frequency of wildlife-vehicle collisions and lunar phase — significantly more of these accidents occur during a full moon.

Do animals give birth on full moon?

A popular belief that there is a higher number of births around the full moon has been shown to be true for dairy cows, report investigators. Analysis showed that the birth rate was statistically higher during the near full and full moon.

What is the energy of the full moon?

Waning Moon Energy—When it is waning (shrinking), it is the ideal time of the month for letting go and cleansing. Full Moon Energy—Cosmically speaking, the full Moon is the time of the month where energy peaks and then releases, like a “cosmic sigh.”

How does the moon affect humans and animals?

According to Tom, there are three main ways in which the Moon impacts on life: time, tides and light. 'For many animals, particularly birds, the Moon is essential to migration and navigation. Other will time their reproduction to coincide with the specific phases of the lunar cycle. '

Do full moons affect people's behavior?

In theory, the light of a full Moon might disrupt people's sleep, which could influence their mood. Anne Wirz-Justice, a chronobiologist at the Psychiatric Hospital of the University of Basel, Switzerland, describes Wehr's data on this relationship between lunar and manic-depressive cycles as “believable” but “complex” ...

Can dogs sense a full moon?

They look at these behavior changes during the period of time during the week the Earth is experiencing a full moon. There is little to no evidence of how the full moon affects the behavior of dogs and what signs present when there is a full moon.

Does a full moon affect horses?

Moon phases can affect both humans and animals on many levels, from fluctuations in hormones to fertility levels to immune responses. However, there has been no concrete evidence that the phases of the moon effect a horse's colic risk.

Why do fishermen like fishing during a full moon?

When the moon is full, there is an increased amount of tidal water that comes in during the rising tide. Extra water can be great if you're an angler who's looking to land a big one. With increased tidal volumes, some bigger fish swim inland for longer distances than they normally would.

What animals are influenced by the moon?

Researchers have been cataloging moonlight's effects on animals for decades. And this work continues to turn up new connections. Several recently discovered examples reveal how moonlight influences the behavior of lion prey, the navigation of dung beetles, the growth of fish — even birdsong.

What happens in the ocean during a full moon?

High tides and low tides are caused by the moon. The moon's gravitational pull generates something called the tidal force. The tidal force causes Earth—and its water—to bulge out on the side closest to the moon and the side farthest from the moon. These bulges of water are high tides.

Why is my dog barking at the moon?

There is a decent chance that your dog just may be a bit weaker in spirit than you expect! The light and sounds that emanate from a well moonlit night that may just push your dog into fear, and the barks and howls are simply the natural reaction your dog has to any fearful situation.

Why do dogs lick you?

Studies have shown that licking releases endorphins in a dog's brain. Endorphins are neurotransmitters that make dogs (and us!) feel calmer and more relaxed. Dogs lick people for a variety of reasons, including affection, communication, grooming, exploration, attention, and taste.