Almost everyone knows the five senses: sight, smell, hearing, touch, a taste. But what about a sixth sense? While humans only have five senses, there are plenty of animals with a sixth sense and sometimes even an seventh. Non-human animals might not have the same brain power as us (though they are quite intelligent). But they do possess something we do not - intelligent animal perceptions.
These strange animal abilities can only be described as a sixth sense. These evolutionary advantages have helped them survive for millions of years, and given them the almost "freaky" ability to have so-called animal premonitions. If it seems like animals can sense things we humans cannot, it's because they have the super ability to do just that. Here are some of the most amazing things animals can do with their sixth (and seventh) sense.
Do these eight-legged critters possess all the powers of Spider-Man? No. But they do possess some truly incredible abilities that allow many to sit atop their food chain. All spiders contain a mechanoreceptor organ called slit sensilla, which allows them to sense the smallest physical deformations or strains on their exoskeleton. Spiders also use these organs to judge the size, weight, and perhaps even the kind of prey that gets caught in their web.
Their slit sensilla can be so discerning that spiders can tell the difference between prey, a predator, or even a strong gust of wind.
Jellyfish may be some of the oldest creatures living on planet earth, and are some of the first multi-celled organisms. This ancient animal evolved without eyes, arms, or even a central nervous system. Despite this, they manage to travel thousands of miles around the ocean each year. Specialized balance receptors called statocysts allow comb jellies to orient themselves and stay upright among the ocean’s currents. To make it even more impressive, comb jellies rely on their statocysts to better coordinate their cilia to reel in prey.
While these birds are most well-known for being a nuisance in cities nearly everywhere, one reason pigeons are found in so many parts of the world is because they have incredible migratory power. Thanks to a special sense called magnetoreception, which is a structure in their beaks that contains iron, pigeons can detect the Earth’s magnetic field, allowing them to pinpoint exactly where they are and whey they need to go.
This incredible skill is one of the reasons why homing pigeons were the first form of airmail, which dates back to 3,000 years ago. One of the coolest instances of homing pigeons was being used to proclaim the champions of the Olympic games in Ancient Greece.
The dolphin's incredible intelligence could be considered a sixth sense on it’s own, as they are possibly the smartest animals on the planet after humans. But their sixth sense is even more impressive. Dolphins' use of echolocation allow these animals to pinpoint what is in the water with them, including friends and foes. Echolocation relies on producing high-pitched clicks and squeals that travel through the ocean and bounce of obstructions, returning to a receptor in the dolphin’s head called a “melon.”
This ability, which can be compared to sonar, allows dolphins to see the world around them in a three-dimensional representation without the use of their eyes. This is especially important for river dolphins who live in dark and murky rivers, as opposed to the wide-open ocean.
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