chemistry

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Posts 25389 Featured Image Flamingo Red One Leg Evolution animal

Why are flamingos red? Why do they stand on one leg? Scientific papers explain everything from the six species classifications to the reasons for their evolution.

The vibrant pink flamingos you see at zoos. In Kenshi Yonezu's song "Flamingo," their unstable, one-legged stance, their curved beaks, and their striking red color all play a central role, depicting the fleeting relationships of unfulfilled men and women, and the emptiness and patheticness of modern people...
2026.10.24
animal
Posts 25331 Featured Image Why Armpits Sweat When Nervous animal

Why do we sweat under our arms when we're nervous? This article explains the role of pheromones, which communicate fear and anxiety, based on research papers.

Why do we sweat under our arms when we're nervous? This article explains everything from the physiological mechanisms behind sweating before a presentation to the effects of sweat odor on other people's emotions and brains. Based on research papers, it explores the possibility that human sweat acts as a pheromone to convey fear and anxiety, and its evolutionary significance.
2026.10.18
animal
Posts 24088 Featured Image Salmon Red Color Evolution Antioxidant animal

Why are salmon flesh and salmon roe red (pink)? A scientific explanation of the surprising evolutionary reasons and antioxidant properties!

It's common knowledge that salmon sashimi (meat), fillets, and salmon roe are red or salmon pink. Whether you're at a sushi restaurant, playing Salmon Run in the game Splatoon, or seeing Sanrio's KIRIMI-chan, you accept it without question...
2026.06.18
animal
Posts 20230 Featured Image Wordpress Bed Bug Detection And Eradication Guide animal

[Real-life experience] How to find bed bugs and the complete procedure for eradicating them! A thorough explanation of bite marks, eggs, and their life cycle.

Recently, bed bugs appeared in my apartment. Bed bugs (Cimex lectularius) are indoor pests belonging to the genus Cimex in the family Cordycepsidae, order Hemiptera. In Japan, after World War II, effective insecticides were used to combat them...
2026.05.18
animal
07.3928 Mugwort flower plant

What are the differences between mugwort, wormwood (Artemisia princeps), bitter wormwood, and male wormwood? We'll explain how to distinguish between similar species! Did you know that mugwort is used not only in rice cakes but also in moxibustion and medicine?

Artemisia princeps, Artemisia japonica, Artemisia urticaria, and Artemisia japonica are all members of the Artemisia genus in the Asteraceae family, and are extremely common perennial herbs that dominate small vacant lots from urban areas to mountainous fields. In addition to having a cottony, fluffy underside to its leaves, it belongs to the Asteraceae family...
2026.04.10
plant
07.4209 Hydrocotyle sappan (flower) plant

What are the differences between *Hydrocotyle japonica*, *Hydrocotyle sibthorpioides*, *Hydrocotyle japonica*, and *Hydrocotyle maximowiczii*? We'll explain how to distinguish between similar species! What insects visit these tiny flowers?

Hydrocotyle sibthorpioides, Hydrocotyle japonica, Hydrocotyle kobus, and Hydrocotyle sibthorpioides all belong to the genus Hydrocotyle in the family Araliaceae. These perennial herbs creep along the ground in slightly shaded areas of forests and other woodlands, and are notable for their small, nearly orbicular simple leaves. However, their flowers and fruits are small and inconspicuous...
2026.03.20
plant
Posts 8805 Featured Image Cochineal Lac Shellac Differences animal

Are you actually eating them every day? The differences and dangers of insect-derived food colorings: cochineal, lac, and shellac.

In Japan, except in some regions, eating insects is extremely rare, and it's safe to say that it's almost unheard of among younger generations, especially in urban areas. While some advocate for insect consumption as a way to prepare for food shortages, cries of "Absolutely not!" are heard, mainly on social media. Even I, who work with insects...
2026.02.19
animalhistory
Posts 18779 Featured Image Spice Myth Age Of Exploration plant

Is the theory that spices were used to mask the smell of rotten meat during the Age of Discovery a myth? A thorough explanation of the real reason.

I originally have a science background, but I enjoy reading world history content. I came across something interesting: the idea that spices (spices excluding stems, leaves, and flowers) don't have much antibacterial properties, and that "spices were used to mask the smell of rotten meat"...
2026.02.13
planthistory
Posts 18742 Featured Image Ruminant Stomach Compartments animal

The differences between the four stomachs of a cow (tripe, honeycomb tripe, omasum, and abomasum) and how to remember them! Why do cows have four stomachs?

When you go to a yakiniku (Japanese barbecue) restaurant, you might see four parts of the cow's stomach (fore-stomach) listed as offal: mino, hachinosu, senmai, and giara. Because they have a distinctive taste and are internal organs, people either love them or hate them, but their chewy texture and the fact that they pair well with alcohol make them popular...
2026.01.22
animal
07.2333.a Leptospermum scoparium flower plant

What are the differences between Manuka (Leptospermum scoparium) and waxflower? We'll explain how to distinguish between similar species! Does Manuka honey really have health benefits?

Both Leptospermum scoparium and waxflower belong to the Myrtaceae family and are cultivated for ornamental purposes or used as branches in flower arrangements, as they are part of the "native flowers" or "wildflowers" collectively known as "native flowers" or "wildflowers" native to Australia. Furthermore, in the case of Leptospermum scoparium, some varieties...
2025.04.17
plant
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