Analogy as a source of knowledge.
D000220:Adaptation, Biological; D000818:Animals; D001132:Arm / Q000033:anatomy & histology; D005075:Biological Evolution; D010872:Caniformia; D002335:Carnivora; D002348:Carpal Bones / Q000033:anatomy & histology; D002685:Chiroptera; D003469:Culture; D004289:Dolphins; D004606:Elephants; D007312:Eulipotyphla; D005123:Eye / Q000033:anatomy & histology; D005552:Forelimb / Q000033:anatomy & histology; D006801:Humans; D006811:Humerus / Q000033:anatomy & histology; D008663:Metacarpus / Q000033:anatomy & histology; D049831:Octopodiformes; D012104:Reptiles; D012754:Sharks; D014921:Wings, Animal / Q000033:anatomy & histology