Linked from

The 68 pages that link to Beak, each with the reason it gives.

• BirdBroader topic: Beak form varies with diet and replaces teeth in living birds.

• RadulaCompared with: Cephalopods can cut prey with a beak while their radula processes it further.

• Functional morphologyBroader topic: Beak variation offers a clear case of form associated with functional demands.

• JawCompared with: A beak performs many jaw functions without teeth, using a specialized outer covering.

• ProboscisCompared with: A beak handles food without forming the elongated tube characteristic of a proboscis.

• TriceratopsRelated: Triceratops used a sharp beak to crop vegetation before chewing it.

• ConfuciusornisRelated: Its toothless beak is one of the genus's defining anatomical features.

• VultureRelated: A hooked beak helps tear flesh from carcasses.

• WaterfowlRelated: Waterfowl bills vary with feeding methods, from filtering to grazing.

• Cranial kinesisRelated: Upper-beak mobility changes how some birds handle food.

• RavenRelated: Ravens’ heavy bills help identify them and handle varied foods.

• Bird feedingRelated: Beak shape affects which foods birds can handle at feeders.

• LystrosaurusRelated: Its keratinous beak helped Lystrosaurus crop vegetation despite having few teeth.

• Rock doveRelated: Its short bill and fleshy cere help distinguish the rock dove's head.

• EagleRelated: An eagle's hooked beak tears food after its talons secure prey.

• ParrotRelated: Parrots' strongly curved beaks crack food and help them climb.

• WoodpeckerNarrower topic: A woodpecker’s bill is a specialized example of the broader range of bird beak forms and functions.

• PasseriformesRelated: Passerine beaks vary widely with diet, from seed cracking to insect capture.

• ProtoceratopsRelated: Its hooked beak helped Protoceratops crop tough plant material.

• House sparrowRelated: Its stout conical beak is suited to cracking seeds.

• PsittaciformesRelated: The order's deep, curved beak is a conspicuous adaptation for cracking and manipulating food.

• PufferfishRelated: Pufferfish have fused teeth that form a beak for crushing hard prey.

• FinchRelated: A finch's robust bill is its most visible adaptation for handling seeds.

• BillCompared with: “Beak” is a common synonym for “bill,” though usage varies by context.

• HeronRelated: Herons use their pointed bills to seize, stab, or manipulate prey.

• PsittacosaurusRelated: Its parrot-like beak helped crop vegetation despite the absence of large horns.

• Dinosaur dentitionCompared with: Toothless beaks contrast with the toothed jaws of non-avian dinosaurs.

• Hawksbill sea turtleBroader topic: The hawksbill's narrow, hooked beak helps it reach prey in reef crevices.

• HornbillNarrower topic: The hornbill’s oversized bill is a specialized form of this structure.

• OrnithomimosauriaRelated: Toothless jaws in many derived ornithomimosaurs formed a beak-like feeding structure.

• PasseridaeRelated: Many Passeridae have stout bills adapted to handling seeds.

• RamphastidaeNarrower topic: A toucan's bill is a specialized form of the general avian beak.

• Rictal bristleRelated: Bristles sit beside the beak and can affect how prey enters the mouth.

• Rostrum (insect anatomy)Compared with: A rostrum resembles a beak in outline but houses insect mouthparts rather than jaws.

• Bee-eaterRelated: The bee-eater’s slender, slightly curved beak helps seize insects in flight.

• Bird anatomyBroader topic: Beak shape connects anatomy directly to diet and behavior.

• HoopoeNarrower topic: The hoopoe’s unusually long, slender beak is adapted for probing soil and crevices.

• IchthyornisCompared with: The toothless beak marks a later condition absent in Ichthyornis.

• New World vultureRelated: A hooked beak helps tear carrion, though it is less specialized than many raptor beaks.

• TetraodontidaeBroader topic: Pufferfish tooth plates meet to form a beak-like cutting and crushing surface.

• EstrildidaeRelated: Estrildids’ short, stout bills are adapted for handling seeds.

• HeterodontosaurusRelated: Its beaked jaws helped crop vegetation despite the conspicuous teeth farther back.

• Old World flycatcherRelated: The bill helps flycatchers seize and handle insects, with shape varying among species.

• Old World sparrowRelated: The sparrows’ stout, conical beaks are adapted chiefly for handling seeds.

• OrnithomimusRelated: Ornithomimus lacked teeth and had a beak-like jaw covering.

• Blue-ringed octopusRelated: The bite that introduces venom is made with the octopus’s concealed beak.

• Java sparrowRelated: Its thick, conical beak cracks the seeds that form much of the Java sparrow’s diet.

• NuthatchRelated: A nuthatch's strong, pointed bill pries seeds and insects from bark.

• PhorusrhacidaeRelated: The large hooked beaks of phorusrhacids were among their most distinctive features.

• PorcupinefishBroader topic: Porcupinefish use fused dental plates to crush shells and other hard food.