1 of 5000

|

acrylic prints penguin acrylic prints feather acrylic prints bird acrylic prints feather still life acrylic prints air cells acrylic prints anatomy acrylic prints quill acrylic prints electron microscopy acrylic prints feathers acrylic prints interior acrylic prints internal structure acrylic prints scanning electron micrograph acrylic prints scanning electron microscope acrylic prints science acrylic prints scientific acrylic prints

photographs penguin photos feather photos bird photos feather still life photos air cells photos anatomy photos quill photos electron microscopy photos feathers photos interior photos internal structure photos scanning electron micrograph photos scanning electron microscope photos science photos scientific photos

Add This Artwork to Your Favorites Collection

Comment

Add This Artwork to Your Favorites Collection

Comment

Penguin feather. Coloured scanning electron micrograph (SEM) of a fractured quill (calamus) from a penguin feather. The pithy material (keratin) contains air cells to make the quill light yet strong. The penguin (family Spheniscidae) has the most densely packed feathers of any bird. The central shaft (rachis) runs down the centre and rows of filaments (barbs) project from either side of the rachis. Along the length of each barb are smaller filaments that are hooked, known as barbules. 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. Magnification: x 1000 when printed 10 cm wide.

Science Photo Library (SPL) is the leading source of science images and footage. Sourced from scientific and medical experts, acclaimed photographers and renowned institutions, our content is unrivaled worldwide. Outstanding quality, accuracy and commitment to excellence are deeply embedded in our DNA. Science Photo Library inspires creative professionals and delivers engaging content of the highest quality for a wide range of clients in a variety of sectors. Visit sciencephoto.com for more information and stay connected on Twitter, LinkedIn, Instagram and Vimeo.