221 Facts Tell Me Why

221 Facts Tell Me Why221 Facts Tell Me Why is a storehouse of curious facts about the world. The collection will encourage children to go and explore knowledge out there in the world.✨📚

Why does the sunflower plant always face towards the sun?

A sunflower plant contains hormones called the ‘auxins’ that are sensitive to sunlight and will always avoid it. That is why this hormone is mostly found in the shaded part of the flower-stem. It will migrate from the sunny side of the plant to its shaded side of the stem, where it will boost the …

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Why are a bird’s feathers water-insulated and waterproof?

A bird’s feathers grow from the epidermis of the bird’s skin and can be divided into ‘semiplumes’, ‘filoplume’, ‘bristle’ and ‘powder feathers’. Given their impeccable daily routine, birds maintain their feathers by preening, dust bathing and even bathing in the water. When birds preen themselves with their beaks, they pick up oil by rubbing the …

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Why are animals said to be masters of disguise?

Animals have developed adaptability to blend in their surroundings. This is necessary so that they may remain hidden from their hunters or even from their prey that they are hunting. This is called ‘camouflage’. They can camouflage by merging themselves with their backgrounds or by having patterns on their bodies that break up their outline, …

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Why do dogs circle around before lying down?

Wolf-like dogs lived in the wild in earlier ages where they slept out in the open, without much warmth or safety or comfort, unlike their pampered ‘pet’ friends now. They lived in packs and travelled constantly looking for food and shelter. For resting, they would perform the circling behaviour, smoothen out the uneven surface to …

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Why does sunshine make us feel happy?

According to research, sunlight plays a vital role in affecting our general health and happiness. The correlation between light and mood is unquestionable. Our body produces serotonin, a neurotransmitter, that regulates our appetite, moods and memory, and melatonin, a hormone that promotes sleep. As the sun rises and hits upon our optic nerves, a gland …

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Why are flies attracted to bad smells?

Flies need soft and moist areas to breed and thrive. Therefore, when organic material like fruits, vegetables, dead organisms or even a feces start to decompose and smell bad, it becomes the ideal breeding ground for larvae of flies. Additionally, flies are detritivores; they play an important role as ‘cleaners’ in our ecosystem by consuming …

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Why does breathing pure oxygen kill you?

Oxygen is a very strong oxidant. It is necessary for mitochondria, the ‘energy plants’ of our cells to work and ‘burn’ glucose to get energy. High doses of it oxidize and damage molecules and tissue of our body. Our body is constantly trying to get rid of the ‘free radicals’ oxygen atoms available to interact, …

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Why do we have ‘phobias’ that are completely irrational?

In normal circumstances, people are faced with scary situations which give rise to excess fear in them. The natural response to it is either to take flight or fight the situation. However, sometimes some people are unable to cope with the extreme stress related to persistent fear of a certain situation or object and they …

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Why do horseshoe crabs have blue blood?

Horseshoe crabs, lobsters and most molluscs have blue blood. Human blood gets its red colour because of haemoglobin where the iron atoms bind to oxygen to give the red colour. Crustaceans or crabs and lobsters get the blue colour from the pigment called ‘hemocyanin’ that carries oxygen in their blood. The copper atoms absorb oxygen …

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Why do identical twins have different fingerprints?

Identical twins share the same genetics and DNA. However, they have small differences that might occur in the womb environment. Not every aspect of our physical appearance is determined by our genes. When a single fertilized egg splits in two after conception, twins are born who share the same DNA. Chance fluctuations of hormone level …

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Why do the male anglerfish ‘merge’ into the female one?

The female anglerfish are bigger while its males are extremely small, 1/40th of the female size. After a certain stage of maturity, the male anglerfish’s digestive system starts shutting down. It needs a female fish to anchor to, else it will die. The male fish has small hooked teeth at the front in its jaws, …

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Why do fishing spiders appear to be ‘walking on water’?

Fishing spiders usually live near water. They seem to defy gravity and will appear to walk on the surface of the water. They have this ability because they are able to utilize the surface tension of the water as other water striders and surface dwelling aquatic insects do. These spiders have short hair that repels …

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Why is the Bermuda Triangle so infamous?

The Bermuda Triangle is somewhat of a supernatural, a complete myth or even a conspiracy, and most definitely a mystery. Also known as ‘The Devil’s Triangle’, it is a loosely defined region in the mid-Atlantic near the island of Bermuda. The place is infamous for its innumerable tales of disappearing aircraft and ships in an …

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Why do ants touch one another before walking away in opposite directions?

An anthill is functional due to hundreds of ants working together. Each anthill has its own smell and any interloper with a different smell is chased away. Whenever an ant finds food, it will sprinkle its unique smell on it and rush back to inform others. On its way, it will sprinkle its smell at …

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