Koinophilia is an evolutionary hypothesis proposing that during sexual selection, animals preferentially seek mates with a minimum of unusual or mutant features, including functionality, appearance an
This leucistic Indian peacock, Pavo cristatus, is unlikely to find a mate and reproduce in a natural setting due to its unusual coloration. However, its striking colour is appreciated by humans, and may be included in artificial selective breeding to produce more individuals with the leucistic phenotype.
The overwhelming impression of strict uniformity, involving all the external features of the adult members of a species, is illustrated by this herd of springbok, Antidorcas marsupialis, in the Kalahari Desert. This homogeneity in appearance is typical, and virtually diagnostic, of almost all species, and a great evolutionary mystery. Darwin emphasized individual variation, which is unquestionably present in any herd such as this, but is extraordinarily difficult to discern, even after long-term familiarity with the herd. Each individual needs to be uniquely and prominently tagged to follow its life history and interactions with the other (tagged) members of the population.
Top: wild teosinte; middle: maize-teosinte hybrid; bottom: maize
The carrion crow is a passerine bird of the family Corvidae, native to western Europe and the eastern Palearctic. Along with the hooded crow, the carrion crow occupies a similar ecological niche in Eu
Koinophilia
…Dodd's experiment has been easy for many others to replicate, including with other kinds of fruit flies and foods. The carrion crow (Corvus corone) and hooded crow (Corvus cornix) are two closely related species whose geographical distribution across Europe is illustrated in the…
Carrion crow 2022 04 05 05 02
Adult male carrion crow moulting at the Jardin des Plantes of Paris
In Southend-on-Sea, England