Can a Fox Really Sense an Invisible Force? | Animal Kingdom

[00:00:00]If I told you there is an animal that can hear a mouse moving beneath a meter of snow, survive in burning deserts and frozen tundra and has outwitted humans for more than 5,000 [music] years. You might think I was describing a myth, but it isn't a myth. It's real and it [music] may be watching you right now from the edge of the forest. Tonight, [music] we are going to follow a mystery that puzzled scientists for decades. A question that sounds impossible.

[00:00:28]How does a fox [music] hunt something it cannot see, cannot smell, and sometimes cannot even hear? Because in the depths of winter, [music] when the ground is sealed beneath snow and the world seems silent, a fox does something no predator should be able to do, it stops, lifts its head, and stares into the sky. Not at the clouds, not at the sun, at nothing we can see. [music] For a moment, it doesn't move. Then it leaps straight [music] into the snow.

[00:01:01]And when it rises, there is a mouse in its mouth, no tracks, [music] no visible movement, no sound a human could hear. [music] So the question is simple and unsettling. What did the fox just see?

[00:01:15][music] For centuries, people believed it was instinct or luck or something close to magic. But before we answer that, [music] we need to understand the animal itself. Foxes live almost everywhere on Earth. From Arctic tundra to desert sands, [music] from deep forests to the centers of modern cities. But here's the strange part. Why do foxes succeed where stronger predators fail? Wolves [music] hunt in packs. Lions hunt in groups.

[00:01:45]Even dogs rely on humans. [music] >> You're such a good dog.

[00:01:50]>> Foxes hunt alone. So, how does a small lightweight animal survive without strength, without numbers, without [music] protection? The answer is memory. A fox remembers danger, but not in [music] a simple way. It remembers places. A road where a car once passed.

[00:02:08]A yard where a dog once [music] chased it. A field where a trap once stood. And it avoids them sometimes for life. So, here's another question. [music] If foxes are so careful. Why do they still walk into cities?

[00:02:24]Because cities [music] have food. Foxes have learned our schedules. They know when trash goes out. They know when streets go quiet. They know which houses feed their pets [music] outside. In places like London, Paris, New York, and Tokyo, foxes move through neighborhoods like night shift workers. Not wild in the old sense. [music] Not tame either. something in between.

[00:02:49]But cities bring danger, too. [music] So why risk it? Because foxes don't just survive by hunting. They survive by planning.

[00:02:59]Foxes [music] bury extra food when prey is abundant. Weeks later, they return.

[00:03:04]Not by guessing. By remembering landmarks, trees, [music] rocks, smells. Scientists found foxes can remember hundreds of hidden [music] food sites. So, here's the next question. What happens when another animal steals that [music] food? Most predators would fight. Foxes don't. They move on. They change [music] strategy.

[00:03:28]They adapt. Now travel north to a world of ice. [music] The Arctic fox lives where temperatures fall below -50°.

[00:03:39]So, how does something so small [music] survive cold that kills most mammals?

[00:03:43]Its fur grows even on the bottoms of its feet. Its ears shrink to stop heat loss.

[00:03:49][music] Its coat turns white to disappear into snow. But the most surprising thing, [music] it follows polar bears, not for friendship, for leftovers. So here's another question. Is the Arctic fox a hunter or a strategist? Now go to the opposite extreme, the desert. The fenic [music] fox lives where water almost doesn't exist. So, how does it survive?

[00:04:16]Its ears release heat from its blood. It [music] hunts at night. It hides underground by day. And it drinks almost no water. [music] It gets moisture from insects and fruit. So, here's the pattern. [music] Ice or fire, forest or city, snow or sand, same solution, [music] adapt. But humans wanted to push this further. [music] In Russia, scientists tried something strange.

[00:04:44]They decided to domesticate foxes [music] like dogs. They bred only the commas foxes together. After decades, something unexpected [music] happened.

[00:04:53]The foxes wagged their tails, barked, became friendly, developed flop ears, changed for color. So, here's a question. [music] Did humans change the fox or did the fox reveal something about us? This [music] experiment showed how wolves became dogs. Evolution happening in [music] real time. But in the wild, fox life is still dangerous. Fox families are small and quiet.

[00:05:23]The father [music] hunts, the mother guards the young. Older siblings help raise [music] the next litter. They communicate with dozens of sounds. And sometimes [music] at night, those sounds resemble human screams. A sound that once gave rise to ghost stories across Europe and North America. So [music] foxes became symbols, tricksters, survivors, [music] outsmarting giants.

[00:05:48]But still, the mystery remains. Why does the fox look upward before it jumps? Why pause? Why not attack immediately?

[00:05:59]For years, scientists believe the [music] fox was only listening. Its ears can detect a mouse beneath snow or soil.

[00:06:06]But snow [music] bends sound. Wind distorts it. Distance lies. So hearing alone is not enough. [music] Then scientists notice something strange. Foxes don't jump in random directions. They often line up their bodies the same way [music] again and again. So here's the real question. What are they lining up with? [music] The answer was hidden in something invisible. The Earth's magnetic field.

[00:06:33][music] An invisible force that wraps around the planet. Foxes use it like a measuring tool. [music] Sound tells the fox where the mouse is moving. Magnetism tells it how far away the mouse is. Together, [music] they create a picture in darkness. So, when the fox looks up, [music] it is not looking at the sky. It is aligning with the Earth. It is solving [music] a problem. It is navigating. And when it jumps, it jumps [music] with certainty.

[00:07:03]A red fox can run up to 30 mph, faster [music] than most dogs. But speed is only its escape.

[00:07:11]Its real weapon is understanding. Foxes [music] do not conquer their world. They read it. They do not overpower their prey. [music] They outthink it. They do not rule forests, deserts, or cities.

[00:07:25]They belong to them. [music] And now the mystery from the beginning finally has an answer. What did the [music] fox see before it leaped? Not the mouse. Not the snow. Not the sky. It sensed the invisible lines of the planet guiding its body into position. [music] It listened to sound shaped by silence. It solved the problem written into nature itself. [music] So when you think back to the fox at the start, standing still [music] in the snow, looking up at nothing and jumping with perfect aim, you now know what it was really doing. [music] It was not staring at the sky. It was reading the earth. And that is [music] why after ice ages, cities, and thousands of years beside humans, [music] the fox is still here, quiet, clever, and waiting at the edge of the forest.