Penguin feather, SEM

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Penguin feather, SEM

Penguin feather, coloured scanning electron micrograph (SEM). The penguin (family Spheniscidae) has the most densely packed feathers of any bird. Here, barbs are seen running diagonally, with hooked barbules perpendicular to the barbs. The hooks prevent the feathers from sliding relative to one another, increasing their effectiveness as insulators, as well as allowing the birds to become more streamlined in the water. A layer of oil is secreted onto the feathers to make them waterproof

Science Photo Library features Science and Medical images including photos and illustrations

Media ID 6423394

© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Animal Body Barb Barbs Barbule Barbules Bird Down Feather Feathers Hook Hooked Hooks Insulation Overlapping Penguin Water Proof Yellow False Coloured Oiled

EDITORS COMMENTS
This print showcases the intricate beauty of a penguin feather, captured using a coloured scanning electron microscope (SEM). The penguin, belonging to the Spheniscidae family, boasts the most densely packed feathers among all birds. In this image, we can observe diagonal barbs with hooked barbules perpendicular to them. These hooks serve multiple purposes: they prevent the feathers from sliding against each other, enhancing their insulating properties and allowing these remarkable creatures to become more streamlined in water. To further enhance their functionality, penguins secrete a layer of oil onto their feathers, rendering them waterproof. This ingenious adaptation ensures that even in wet environments, these birds remain dry and well-insulated. The false-coloured SEM image reveals an overlapping pattern of yellow downy feathers intertwined with larger ones. Each tiny hook on the barbules helps maintain this precise arrangement by firmly holding neighboring feathers together. This photograph not only highlights the astonishing biological structure of penguin feathers but also provides valuable insights into zoology and avian anatomy. It serves as a testament to nature's ingenuity and reminds us of the incredible adaptations animals develop for survival in diverse environments. Captured by Science Photo Library without any commercial intent or affiliation mentioned here, this mesmerizing print is sure to captivate anyone interested in exploring the wonders of our natural world.

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