The strong, hooked beaks of eagles hold squirming prey thanks to the sharp, pointed tip.
“The beaks of birds of prey, such as eagles, are almost always very strong and hooked, with a sharp pointed tip for holding wriggling prey.” (Foy 1983:155)
Many living systems must secure organisms for food. But just as one living system must capture its prey to survive, its prey must escape to survive. This results in capture and avoidance strategies that include trickery, speed, poisons, constructed traps, and more. For example, a carnivorous plant called the pitcher plant has leaves formed into a tube that collect water. Long, slippery hairs within the tube face downward. When insects enter the tube seeking nectar, they lose their footing and slide inside, unable to climb out and escape being eaten and digested by the plant.
Class Aves (“bird”): Eagles, hawks, sparrows, parrots
Birds are evolutionary engineering marvels. They are descended from dinosaurs, but are far from our idea of heavy, scaly reptiles. Of the specific adaptions that set them apart, most notable is flight—although some mammals can fly, birds take the prize for abundance in the skies. Many birds have hollow, lightweight skeletons and specially-designed wings to help them stay aloft. They also have feathers made of keratin that help them stay warm, attract mates, and improve navigation and aerodynamics in flight. In contrast to their dinosaur ancestors, they lack true teeth and have replaced them with specialized beaks and bills.
Become part of a global community of humans looking to put our innovation and activity into better harmony with the rest of nature––and help keep AskNature.org free and open to everyone!
Annual Subscription: Buy One at $100, Get One Free
We use cookies to give you the best browsing experience. By clicking the Accept button you agree to the terms of our privacy policy.