Bird feet and legs only a small extension of the cnemial crest. In grebes both a normal patella and an extension of the cnemial crest are found. The fibula is reduced and adheres extensively to the tibia, usually reaching two-thirds of its length. Only penguins have full-length fibulae. The bird knee joint between the femur and tibia (or rather tibiotarsus) points forwards, but is hidden within the feathers. The backward-pointing "heel" (ankle) that is easily visible is a joint between the tibiotarsus and tarsometatarsus. The joint inside the tarsus occurs also in some reptiles. It is worth noting here that the name "thick knee"
Falana Falana Falana is a genus of moths of the Noctuidae family. Palpi upturned, where the second joint reaching vertex of the head and third joint long and naked. Antennae bipectinated in a male with short branches. Metathorax with slight tufts. Abdomen with a dorsal tuft on the first segment, keeled below, with pairs of flattened scale-like plates. Femur with scaly tufts at the base. Fore tibia hairy, mid and hind tibia with medial and distal tufts. Fore wings with an acute apex. Outer margin excised below apex and produced to a rounded lobe at center and point at vein 2.