Theme | Operational definition | Examples—current study |
---|---|---|
Desire-based change | Use of mental states, skills or conscious effort to explain change | (Whale/hippo) some of the relatives discovered that they could subsist better in water; One decides it likes the water and the other one decides it likes the land |
Static adaptation | References the organism-environment fit as the reason why a particular organism might be found in a particular location or have particular features | Hippos actually sleep in the water; (whale/hippo) the ones that were in the water, they had different ways of breathing than the animals on land |
Adaptive feature list | Simply lists adaptive features of 1 or more organisms | (Whale/hippo) … its skull structure is different, its mouth is wide, and its nostrils are further forward and it has tusks |
Goal-directed adaptation | (1) The organism changes to meet a need or purpose, a functional or adaptive goal-directed behavior | (Fly)… for their ability to survive, they needed longer wings or something; (whale/hippo) some of the animals moved onto land and they needed longer legs; … (diatom) gradual evolution into a more complicated life form |
(2) The organism develops towards an inbuilt goal [no mention of need] | ||
Proximate cause | (1) An agent brought the organism in from some place else | (Flies) certainly, the winds bring some things, well maybe like an animal brought it there |
(2) The organism was always there, but was not detected | Well, your premise is faulty because how do you know there weren’t any [flies] that long ago? | |
Reproduction | Reference to reproduction, no clear reference to inherited features | (Flies) they kept mating; [Diatoms] apparently reproduce just by splitting; |
Hybridization | 2 unrelated animals interbred | Different … diatoms … mingled … and produced the … species |