化石 の 昆虫 の 目 は,三頭 類 の 光学 と 関節 類 の 染色 板 に 光 を 投げる

関連する実験動画

Updated: Jan 20, 2026

Dissection of a Mouse Eye for a Whole Mount of the Retinal Pigment Epithelium
16:47

Dissection of a Mouse Eye for a Whole Mount of the Retinal Pigment Epithelium

Published on: February 27, 2011

51.1K

Johan Lindgren1, Dan-Eric Nilsson2, Peter Sjövall3

  • 1Department of Geology, Lund University, Lund, Sweden. johan.lindgren@geol.lu.se.

Nature
|August 16, 2019
PubMed
まとめ

化石化したクレーンフライの目は 石灰化したレンズとエウメラニンを明らかにし 古代の節足類の視力を 洞察することができます この発見は 独特の保存方法を強調し トリロビットの目の組成に関する 過去の解釈に挑戦しています

さらに関連する動画

Clear Resin Casting of Arthropods for Use in Education, Outreach, and Research07:05

Clear Resin Casting of Arthropods for Use in Education, Outreach, and Research

Published on: January 16, 2026

37
Direct-Coupled Electroretinogram DC-ERG for Recording the Light-Evoked Electrical Responses of the Mouse Retinal Pigment Epithelium09:10

Direct-Coupled Electroretinogram DC-ERG for Recording the Light-Evoked Electrical Responses of the Mouse Retinal Pigment Epithelium

Published on: July 14, 2020

5.8K

関連する概念動画

The Fossil Record02:56

The Fossil Record

The fossil record documents only a small fraction of all organisms that have ever inhabited Earth. Fossilization is a rare process, and most organisms never become fossils. Moreover, the fossil record only exhibits fossils that have been discovered. Nevertheless, sedimentary rock fossils of long-lived, abundant, hard-bodied organisms dominate the fossil record. These fossils offer valuable information, such as an organism's physical form, behavior, and age. Studying the fossil record helps...
27.1K
Focusing of Light in the Eye01:16

Focusing of Light in the Eye

Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
5.5K
Osmoregulation in Insects01:47

Osmoregulation in Insects

Malpighian tubules are specialized structures found in the digestive systems of many arthropods, including most insects, that handle excretion and osmoregulation. The tubules are typically arranged in pairs and have a convoluted structure that increases their surface area.
17.5K
Light as Energy01:35

Light as Energy

The energy required to carry out photosynthesis is light— typically electromagnetic radiation from the sun. The range of all possible wavelengths is known as the electromagnetic spectrum.
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit...
95.5K
Pigmentation01:19

Pigmentation

The color of the skin is influenced by a number of pigments, including melanin, carotene, and hemoglobin. Recall that melanin is produced by cells called melanocytes, which are found scattered throughout the stratum basale of the epidermis. The melanin is transferred to the keratinocytes via melanosomes.
Melanin occurs in two primary forms: eumelanin that provides black and brown pigment and pheomelanin that provides red color. Dark-skinned individuals produce more melanin than those with pale...
4.1K
Photoreceptors and Plant Responses to Light02:00

Photoreceptors and Plant Responses to Light

Light plays a significant role in regulating the growth and development of plants. In addition to providing energy for photosynthesis, light provides other important cues to regulate a range of developmental and physiological responses in plants.
28.3K