Russian scientists disproved the ancient concept of two-color vision. The experiment, which involved detecting full and empty food bowls of various hues, revealed that our pets are just as adept as humans are at recognizing the colors blue and yellow. Dogs, contrary to common perception, do not perceive the world in black and white. They, on the other hand, can't tell the difference between green and red.

Isaac Newton was just seeing the fall of a fruit, which inspired the development of Newton's law of universal gravitation. The scientist's biographer, William Stukeley, noted this in his book Memoirs of Isaac Newton's Life. This is the source of the legend of an apple falling on Newton's head.

We can't completely comprehend the strength of our own vision since even on level terrain, we're constrained by the skyline. The maximum distance at which the experiment is unaffected by Earth's form is just approximately 3.1 miles. In truth, a person can see considerably farther: if the world were flat, we would be able to see a flame at a distance of 27 miles in absolute darkness.

Have you ever heard of sharing the DNA with Gorillas? But yes, we do. We share 98% of our DNA with Gorillas. This means that exposure to human illnesses, even a cold, can negatively impact the Gorillas as they are so much similar to us, genetically. Still, they haven't developed the necessary immunities. Interesting, isn't it?

This unexpected paradox arose due to how scores are calculated: the number of civil infractions and criminal offenses committed in a year should be divided by the municipal population. The number is considerably fewer in Vatican City than in So Paulo, Lagos, or the Bronx. In 2006, for example, the population of Vatican City was 492 people, but the number of crimes reported on its territory was 827. As a result, the statistical crime rate in the country was found to be the highest in the world - 1.68 crimes per inhabitant.

These creatures, renowned for their peaceful lifestyle, like going for a swim. Even though a sloth travels 2 meters per minute on land, it can travel 5 times quicker in the water! Because of their sluggish metabolic rate, animals can go for extended periods without breathing.

Mountain Gorillas live in two isolated groups, one in the Virunga Volcanoes and Bwindi Impenetrable National Park, Uganda. They are basically found in the high-altitude bamboo and montane forests which are surrounded by settlements and agriculture.

Lions prefer hunting at night as they have eyes that are adapted to the dark. And these features give them a great advantage over their prey. Lions also prefer hunting during the storms as the noise and wind make it harder for the prey to hear or see them, and hence they can easily attack them. A great strategy, isn't it?

Lions are very adaptable and hence can live in dry areas such as the Kalahari desert. Here they meet their water requirements from their prey and some plants such as Tsamma melon.

Are you aware that your blood aids mosquito reproduction? Your blood contains the protein needed by mosquito eggs to grow. You should also be aware that only female mosquitoes bite. Apply insect repellent cream or lotion to protect yourself from mosquito bites.

Did you know that there are more types of mosquitos on the earth than there are humans? There are over 3,500 different mosquito species ready to suck your blood. To give you an idea of how big that number is, imagine stacking 100 trillion mosquitos on a football field. The mound would be more than three miles tall.

Mosquitoes are one of the most dangerous animals on the planet, yet their optimal life span may surprise you. The average lifespan is a little less than two months: a male mosquito normally survives for three to five days after mating, whereas a female mosquito can live for a month or two under optimal conditions. Females lay eggs every three weeks at the period.

Earthworms are fully formed when they are born, except for their sex organs. Their sexual system takes 60-90 days to develop. An earthworm's lifespan can range from four to eight years. Gardening earthworms, on the other hand, only live for a year or two.

Experts believe that cats hate water because it is bad for them to have wet fur. It also terrifies a cat to lose control of its ability to float.

Whale sharks can neither chew nor bite as they are filter feeders. And their mouths can stretch up to 4 feet wide, but their teeth are tiny, and hence they can only eat planktons and small shrimp fishes by using their gills. Sharks can process 6,000 liters of water an hour through their gills. This shows how laborious it is.

Sharks can be found in all the temperate and tropical oceans except the Mediterranean Sea. And the whale sharks used to migrate thousands of miles to different feeding grounds. But they move very slowly, around 3 miles per hour.

Have you ever thought of a post office that is floating? But in this incredible world, we have it too. India has a floating post office in Srinagar. The post office is built on a houseboat and even houses a museum in it. Interesting, isn't it?

Nobody understands why cats meow, but researchers believe they're channeling their inner kitty. Baby cats meow to attract their mother's attention, but as adults, they do not meow when socializing with other cats. According to some experts, felines use the noises they produced as infants with humans to communicate their emotions and physical necessities.

On October 18, 1963, French scientists launched the first cat into space using a rocket. The feline's name was Félicette, and she landed safely after a parachute descent. She'll almost certainly fall on her feet.

Greyhound dogs and cheetahs have bus lines named after them, but house cats are just as fast: the typical running feline can reach speeds of up to 30 mph. In a school zone, that's enough to obtain a ticket.

Cats are genetically programmed to be unable to taste sweets. They will most likely nibble on your platter if it contains meat, but they will ignore it if it includes dessert.

This habit has numerous functions: it helps cats scale back their scent so they may escape predators, it cools them off, it improves blood flow, and it evenly distributes natural oils over their coats, enabling them to remain warm and dry. Grooming is also a symbol of affection between two cats, and saliva contains enzymes that act as a natural antibiotic for injuries.

Yes, cockroaches are quite fast. Have you ever tried to catch a roach? If not, try it out to see how fast they are. They can move quickly up walls, across slick surfaces, and so on.

This is one of the lesser-known intriguing cockroach facts. This may sound unsettling, but cockroaches can live for a week without their heads. This isn't to say they don't have brains; it's just that their brain doesn't regulate all of their physical processes. The cockroach cannot drink without its head and hence perishes from thirst!

They have existed since the time of the dinosaurs and may even be older than the dinosaurs. Cockroaches are found all throughout the world, and there are thousands of different species. All cockroach species can evolve in a variety of environments.