5 Jan 2023, 12:45 UTC≈1,120 views3 reactionsread 9 August 2026 Photo
WHY do trees need bark?
The bark protects the tree throughout its life.
The top coarse layer of bark protects the tree from drying out or freezing and keeps pests out, so it is essential to the tree. The bark is formed with a layer called cambium, located between the wood and the bark.
Throughout a tree's life, a thin layer of cambium forms new ones of bark and wood (bark on the outside, wood on the inside). Than…
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3 Jan 2023, 17:43 UTC758 views0 reactionsread 9 August 2026 Photo
WHY do store prices end in .99?
Ending the price at .99 is based on the theory we are used to reading from left to right, with the first digit sticking more into our brain than the next.
That's why a person is more likely to buy a product that costs 4.99 than 5, since subconsciously they know that 4 is less than 5, even though there's only a one-cent difference.
3 Jan 2023, 17:43 UTC885 viewsread 9 August 2026 Photo
WHY do sloths tend to hang upside down?
In such a position, they relax. While doing so, it does not grasp a branch, but rather holds onto it passively, using powerful, curved claws. Sloths spend most of their lives in trees.
Resting and sleeping in other animals, in these conditions, requires either a nesting device or anatomical adaptations that prevent them from unclenching their paws and snapping off in their s…
20 Dec 2022, 03:33 UTC706 viewsread 9 August 2026 Photo
WHY amnesiacs do not forget their language and can speak?
The formation of speech occurs in a person up to 6 years old. Thus, the speech skill constitutes the core of the personality and reliably protected: The areas responsible for it are located deep, at the base of the parietal lobe of the brain.
Moreover, when it comes to speech, the two hemispheres are capable of duplicating each other in severe trauma. If one…
20 Dec 2022, 03:33 UTC795 views4 reactionsread 9 August 2026 Photo
WHY is one of the proteins in the human eye named after Pikachu?
In 2008, Japanese scientists from the Osaka Institute of Biological Sciences discovered a protein playing a crucial role in transmitting signals between the ribbon synapses of the human eye's photoreceptors and dendrites.
They named the protein Pikachurin, after the lightning-speed movement and electrical abilities of the Pokémon Pikachu.
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29 Nov 2022, 01:23 UTC614 viewsread 9 August 2026 Photo
WHY do ozone holes appear?
The ozone layer is located in the stratosphere about 25 kilometers above the Earth's surface. It protects our planet from the most active cosmic rays, which would kill all life on the planet without it.
Ozone holes are places where the layer is depleted. Nevertheless, more intense ultraviolet rays reach the planet through these gaps.
Again, humans are to blame for the ozone holes. By pro…
29 Nov 2022, 01:23 UTC707 viewsread 9 August 2026 Photo
WHY do frogs squawk?
Only male frogs make squawking sounds. Quacking is a way to attract females during the mating season.
In order to make a squawking sound, a frog takes a deep breath, closes its nostrils and mouth, and presses air from its lungs to its mouth and back again. Passing through the vocal cords, the air stream touches them, they begin to vibrate, and a quacking sound is heard.
20 Nov 2022, 18:25 UTC533 viewsread 9 August 2026 Photo
WHY are sea currents affecting the weather?
The World Ocean plays a special role in creating the climate. Huge amounts of water accumulate here. Evaporation, heating and cooling have a permanent effect on cloudiness and winds.
Another important fact to consider is that the water of the oceans and seas is in constant motion: the upper and lower layers mix, strong currents move cold or warm water over vast distances,…
20 Nov 2022, 18:25 UTC651 views5 reactionsread 9 August 2026 Photo
WHY do amphibians not live in salt water?
Since amphibians' lungs do not fully supply them with oxygen, skin respiration, which requires a moist, thin skin, plays a major role.
Amphibians are highly sensitive to the absence of table salt in soil and water, which is specifically detrimental to the development of their eggs and larvae.
The concentration of salt in the skin cells of amphibians is less than in seawate…
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18 Nov 2022, 17:58 UTC495 viewsread 9 August 2026 Photo
WHY do bees make honey?
Honey is vital to bee nutrition, especially in the winter.
To make honey, bees collect nectar from flowers. Since nectar contains a lot of water, bees have to work hard to dry it out. Also, bees add enzymes from their own bodies to the honey to turn the nectar into food and keep it from spoiling.
Honey is stored in the honeycomb for maturation. During ripening, the young bees transfer necta…
17 Nov 2022, 17:17 UTC455 viewsread 9 August 2026 Photo
WHY does the orchestra conductor shake hands with the first violinist in concerts?
He does so primarily for the reason that the first violinist is the orchestra's tuning fork, the realization of the conductor's intent.
Interesting fact: Beethoven, recognizing the talent of Ludwig Spohr, invited him to be first violin in the famous musical ensemble in which he himself conducted. It was a tribute that endures to this…
16 Nov 2022, 05:12 UTC414 views0 reactionsread 9 August 2026 Photo
WHY do people turn gray?
Melanocytes, located in the hair follicle, are responsible for hair color. They synthesize hair pigments, and their combination determines hair color. Indeed, melanocytes themselves are formed from stem cells.
As we age, the hair follicles wear down. This is manifested by a decrease in the number of melanocytes in the hair follicles, as well as a decrease in the activity of the remaining me…
Showing the 12 most recent of 20 posts we hold for @Why_Explained. View and reaction counts are the latest single reading for each post, not a live figure, and a recent post is still accumulating both. A view count marked ≈ was rounded by Telegram before we ever saw it — t.me prints views in full below 1,000 and to three significant figures above, so ≈1,200,000 means somewhere between 1,150,000 and 1,249,999. Unmarked counts are exact. Text is reproduced from the public post preview and truncated for length.