Beak
Query URLs
https://term.museum-digital.de/md-de/tag/14219
- Note
- The beak, bill, or rostrum is an external anatomical structure found mostly in birds, but also in turtles, non-avian dinosaurs and a few mammals. A beak is used for eating, preening, manipulating objects, killing prey, fighting, probing for food, courtship, and feeding young. The terms beak and rostrum are also used to refer to a similar mouth part in some ornithischians, pterosaurs, cetaceans, dicynodonts, anuran tadpoles, monotremes (i.e. echidnas and platypuses, which have a beak-like structure), sirens, pufferfish, billfishes and cephalopods.
Although beaks vary significantly in size, shape, color and texture, they share a similar underlying structure. Two bony projections – the upper and lower mandibles – are covered with a thin keratinized layer of epidermis known as the rhamphotheca. In most species, two holes called nares lead to the respiratory system.
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Filterkännchen
Filterkännchen auf...
Object information
Image: Museum Schloss Bernburg - CC BY-NC-SA -
Teile eines Kleiderschranks mit farbiger Fassung
Dieser Kleiderschrank ist nur...
Object information
Image: Stadtmuseum Simeonstift Trier - CC BY-NC-SA -
Schnabelstitze (Schenkkanne)
Die hervorragend erhaltene...
Object information
Image: Siebenbürgisches Museum Gundelsheim e.V. - CC BY-NC-SA -
Marienwalder Deckelhumpen mit Rotem Adler
Zylindrischer Humpen aus...
Object information
Image: Stiftung Stadtmuseum Berlin - CC BY-NC-ND -
Hozschnitt, Darstellung eines Schwarzspechts auf Holz
Ein Schwarzspecht sitz auf...
Object information
Image: Museum der Stadt Bad Bergzabern - CC BY-NC-SA
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