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What are the differences between cochineal, lac, and shellac, insects we actually eat every day? Is it true that they are found in large quantities in red foods and lipstick? Are they dangerous? Why are they used?

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 though I work with insects, I still...
2026.02.19
animalhistory
animal

What are the differences, roles, functions, and ways to remember the stomachs of ruminants (tripe, honeycomb tripe, omasum, and abomasum)? Why did rumination evolve?

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 compatibility with alcohol make them a popular choice...
2026.01.22
animal
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Is Adlerian psychology suspicious? Is it dubious? Is it pseudoscience? How much of it is actually proven? We'll explain the scientific basis and common misconceptions!

If we were to summarize Adlerian psychology in one sentence, it would be: "A psychology that fosters the ability to live in cooperation with others (community feeling) by choosing one's own life (self-determination), acting in accordance with one's purpose (teleology), and letting go of unnecessary control over others (separation of tasks)." However, his psychology...
2026.01.20
animalhistory
animal

What are the origins of rhythm and time signatures (2/4, 4/4, 3/4)? An explanation of their evolutionary and historical origins!

When you take up listening to music, singing, or dancing as hobbies, you naturally develop an interest in rhythm and time signatures. However, if you try to pinpoint the origins of these things, you might find it difficult to answer. Because we often find ourselves naturally moving to rhythms, we might not even question it...
2025.11.12
animalhistory
animal

Why shouldn't we exterminate bears to the point of extinction? A complete explanation of the benefits of bears (Asian black bears and brown bears)!

In Japan, the Japanese black bear (Ursus thibetanus japonicus) is found on Honshu and Shikoku, while the Hokkaido brown bear (Ursus arctos yesoensis) is found on Hokkaido. In 2025, these bears were projected to be active in populated areas...
2025.11.02
animalecosystem
animal

What is the role of the strangely enlarged final legs of the *Centipede* species? Could they be a secret weapon for aggressively defending against predators?!

The term "female centipedes" refers to a group of centipedes belonging to the genus *Scylla* in the family Scolopendridae, order Scolopendromorpha. These centipedes are burrowing and rarely seen by the average person, but their most striking feature is their strangely enlarged final gait. While there have been various theories regarding the function of this final gait,...
2024.11.26
animal
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The Towada mosquito is not only beautiful, but it's also a "mosquito that eats mosquitoes"!? We delve into the mysteries of this mosquito with its unique habitat and everything else about it.

When you think of mosquitoes, you probably imagine blood-sucking insects that are a real nuisance in the summer. However, there's a type of mosquito in Japan that doesn't suck blood at all. The Towada mosquito is harmless as an adult, doesn't suck blood, and is the largest and most beautiful mosquito in Japan...
2024.08.26
animal
animal

The hooked ant is an ant that only eats "insect eggs"!? Unraveling the mystery of its "hook" shaped abdomen!

When you hear the word "ant," you might picture a black insect crawling on the ground. However, there are actually many unknown species of ants living underground, and among them, the Hooked Ants and Pterodactylus ants have a very unique shape with a hook-shaped abdomen. Their appearance is...
2024.08.25
animal
animal

What are the different species of leafhoppers? How do they differ from planthoppers? Are they harmful? What do they eat? Did they communicate through "vibrations"? What is the role of their body color?

Leafhoppers are a general term for the family Cicadellaceae, a group of insects distributed worldwide that primarily inhabit the stems and leaves of herbaceous plants. At least 20,000 species have been described globally, and currently, 190 genera and 576 species are known in Japan, making them a highly diverse and thriving group. A close relative is the planthopper...
2023.05.09
animal
animal

What are the species of pseudoscorpion? Are they found in Japan? How are they collected? What do they eat? What is the purpose of their crab-like "claws"?

Pseudoscorpions are a small species of arachnid that inhabit inconspicuous places such as crevices in leaves and rocks, under stones and tree bark, and in decaying trunks. They are distinguished from scorpions by the absence of a long, spiny section on the metathorax (the tail of a scorpion). As of 2023, approximately 3,400 species have been identified worldwide, and they are also widespread in Japan...
2023.04.24
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