头足纲动物的伪装和信号 - Roger Hanlon P1
本视频由科普中国和生物医学大讲堂出品
Roger Hanlon (MBL) Part 1: Camouflage and Signaling in Cephalopods
Hanlon introduces the amazing adaptive coloration of cephalopods. He uses video and still photography to showcase their ability to rapidly change color, pattern and skin texture with fine control and a diversity of appearances, to produce camouflage or to send signals. He argues that all camouflage patterns in nature can be grouped into three types. In part 2, Hanlon shows us results from his lab that make a convincing case that the rapid adaptive coloration of cephalopods is controlled by their visual system; quite impressive for a color-blind animal! Part 3 focuses on the unique skin of cephalopods including the system of pigments and reflectors that allows it to quickly change to any hue and contrast, and the papillae musculature that allows the skin to deform and create multiple 3D textures.
对头足纲动物视觉感知机制的探索 - Roger Hanlon P2
本视频由科普中国和生物医学大讲堂出品
Roger Hanlon (MBL) Part 2: Exploring Mechanisms of Visual Perception
Hanlon introduces the amazing adaptive coloration of cephalopods. He uses video and still photography to showcase their ability to rapidly change color, pattern and skin texture with fine control and a diversity of appearances, to produce camouflage or to send signals. He argues that all camouflage patterns in nature can be grouped into three types. In part 2, Hanlon shows us results from his lab that make a convincing case that the rapid adaptive coloration of cephalopods is controlled by their visual system; quite impressive for a color-blind animal! Part 3 focuses on the unique skin of cephalopods including the system of pigments and reflectors that allows it to quickly change to any hue and contrast, and the papillae musculature that allows the skin to deform and create multiple 3D textures.
头足纲动物的可变化的皮肤细胞 - Roger Hanlon P3
本视频由科普中国和生物医学大讲堂出品
Roger Hanlon (MBL) Part 3: Changeable Skin
Hanlon introduces the amazing adaptive coloration of cephalopods. He uses video and still photography to showcase their ability to rapidly change color, pattern and skin texture with fine control and a diversity of appearances, to produce camouflage or to send signals. He argues that all camouflage patterns in nature can be grouped into three types. In part 2, Hanlon shows us results from his lab that make a convincing case that the rapid adaptive coloration of cephalopods is controlled by their visual system; quite impressive for a color-blind animal! Part 3 focuses on the unique skin of cephalopods including the system of pigments and reflectors that allows it to quickly change to any hue and contrast, and the papillae musculature that allows the skin to deform and create multiple 3D textures.
啮齿动物的立体定位手术
立体定向（或立体）手术是一种用来操作活体动物大脑的方法。该技术使得研究人员能够通过使用立体定位图谱准确地定位大脑内的深层结构。立体定位图谱提供了每个脑区相对于颅骨上的解剖学标志的三维坐标。将颅骨暴露后，麻醉的动物被固定在被称为立体定位仪的专门仪器上，该仪器能使实验工具精确放置在定好的坐标上。立体定位手术是一项用途广泛的技术，可用来产生损伤，操纵基因表达，或将实验试剂施加到大脑里。
本视频文章概述了立体定位手术的原理，包括使用立体定位图谱和立体定位仪的说明，并介绍了读取测量探头移动的游标刻度的方法。随后的讨论概括了手术过程所需的步骤。最后，展示了该技术的广泛应用，如插入电极探针以测量大脑活动以及脑组织的遗传操作方法。
对野生动物摄影的爱
As a child, Susan McConnell would spend hours watching wood rats carrying out their complex social lives in a woodpile. In this interview, she explains how her early interest in animal behavior formed the underpinnings of two passions in her life: understanding how neural circuits are assembled during development (which ultimately regulates animal behavior, and forms the main pursuit of her lab), and her love for wildlife photography, which she pursues around the globe.