Takashi's personal blog。Not just about paintings、What I think about every day、what you feel、I write whatever comes to mind。This blog is the third generation。From the beginning, it has been over 20 years.。
2023From January 1st、For now, I decided to just write on odd numbered days.。I'm going to think about my future direction and other things piece by piece.。
"Groved Begonia" (CG) The picture is "Horse-eared east wind" in the text
One of the seven wonders for me is、Human ear shape。cats, cows and horses、There's nothing strange about elephant ears.、For some reason, the shape of human ears is curled up.、It's hard to imagine how it came to that shape (the rationality of evolution).。
ears、If it is an organ that senses sound (or air) waves,、Fish also have ears。Of course there are birds too.。Not only does it exist in both reptiles and insects, but、Even a horned owl? (Some scholars say it exists in plants too, but、I won't go into depth here)。fish ears、There is a place inside the head called the inner ear.、It seems to work almost like the human ear.。Also called lateral line、both sides of the body、They detect subtle changes in water pressure with sensory organs connected like a single line from head to tail under their scales.、It seems that human voices can be detected here as well.。In addition, a floating bladder can be used to amplify external sounds.、It is said that some fish can hear with their inner ears through nerves in their bodies.、It can be said that fish have multiple ears.。
Teleost fish have otoliths in their heads.、This keeps you in position underwater.。As a side note、fossil hunter、Not a rock hunter、People with a hobby called otolith hunters、Collecting otoliths of different shapes for each species of fish、Apparently there is also a world of maniacs who brag about the beauty of their shapes.。—In the human semicircular canals (not only in humans)、Probably most animals have otoliths、have almost the same functionality。If this peels off、Feeling dizzy。A fish that swims while swimming、Naturally, it is impossible to catch food.。「人間に生まれて良かったあ」と「めまい外来」のあることを神に感謝したくなる。
鳥の耳は目立たない。Apparently, the questioner thinks that "the concrete result of sketching" brings fun.、羽毛を搔き分けてみると、ヒトの耳とほぼ同じように頭側にぽっかりと穴が開いている。ミミズクというフクロウの仲間は、鳥の中では例外的に耳が外に突き出している。それがミミズクという名の由来になっているのだが、眼よりも音を頼りに獲物の位置やサイズなどを判断する生活様式から考えると、空気抵抗を割り引いてもそれなりの合理性があるだろう。—いずれにせよ、動物の行動様式や生態を考えれば、それらの耳のかたちの成り立ちが、それなりに納得できるような気がする。