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Posts 16293 Featured Image Origin Of Rhythm And Meter animal

Why can humans move in rhythm? Unraveling the origins of 2/4, 4/4, and 3/4 time signatures from an evolutionary biology perspective.

When listening to music, singing, or dancing becomes a hobby, you naturally develop an interest in rhythm and time signatures. However, if you try to pinpoint the origins of this interest, you might find it difficult to answer. Often, we just naturally find ourselves moving to the rhythm...
2025.11.12
animalhistory
Posts 16225 Featured Image Why Bears Should Not Be Eradicated 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 venture into human settlements...
2025.11.02
animalecosystem
11.3529 Japanese Centipede (Adult, Full Form) 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
13.24534 Towada Giant Beetle (adult) animal

Does it not suck blood? The Towada mosquito, Japan's largest and most beautiful mosquito, is actually a "mosquito that eats other mosquitoes"!

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
13.09580 Morishita's ant, female, adult, worker, side view animal

The hooked ant is a strange ant that only eats insect eggs!? The mystery of its evolutionary 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
13.04002 *Tsumaguro-ooyokobai* (adult) animal

What are the differences between leafhoppers and other leafhoppers? Are they harmful? A thorough explanation of their surprising ecology and even their "vibration"-based courtship rituals.

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
11.1825 Adult *Pseudoscorpion* (large parasitic insect), dorsal view animal

What are the different types of pseudoscorpions and how can they be collected? Are they found in Japan? This article explains their ecology and the uses of their 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
animal
Bombycilla Garrulus Adult Bird Whole Shape animal

[How to tell them apart] What are the differences between Bohemian waxwings and Japanese waxwings? Their surprising behavior reveals their age through a red, waxy substance.

The Bohemian Waxwing and the Japanese Waxwing are both brightly colored winter birds belonging to the Waxwing genus, possessing crests and often appearing in red or yellow. They are very similar, and it can be difficult to distinguish between them. However, checking the tips of their tail feathers will allow for reliable identification, and there are subtle differences in their coloration. Their distributions differ significantly; the Bohemian Waxwing...
2023.04.17
animal
Posts 4155 Featured Image Terrestrial Aquatic Insect Identification Books animal

Summary of Identification Literature for Terrestrial and Aquatic Insects: List of Field Guides and Papers Containing Identification Keys

This article compiles literature for identifying insects. The focus is primarily on literature containing identification keys that allow for reliable species identification. While all taxonomic groups are covered, this is based on personal needs and observations, and therefore is not a comprehensive collection...
2022.10.06
animal
Monoceromyia Pleuralis Male Adult Edited animal

Do the bee-like hoverflies sting? An explanation of the mysterious life cycle and potential harm of this fly that feeds on tree sap.

Are you familiar with the hoverfly known as the false bee hoverfly? At first glance, it looks exactly like a bee, but hoverflies are actually a type of fly, so they won't sting you and are harmless. Its bright colors are thought to be a form of mimicry. Although it's actually a type of hoverfly...
2022.07.06
animal
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