The facial pit underwent parallel evolution in pitvipers and some boas and pythons, having evolved once in pitvipers and multiple times in boas and pythons.
42.
However the criteria for defining convergent as opposed to parallel evolution often are unclear in practice, so that arbitrary diagnosis is common in some cases.
43.
Lande said, " it is likely that both sexes are involved in choosing mates to a nearly equal extent, leading to parallel evolution of ornaments ."
44.
Ferr�s Sexto completed his PhD under the supervision of Patrick O'Flanagan, conducting a comparative study on the parallel evolution and rural change between Ireland and Galicia.
45.
Both of these parallel evolutions are founded on the work of Louis M . Brown, developed in the 1950s known as the preventive approach to law.
46.
The facial pits enabling thermoregulation underwent parallel evolution in pitvipers and some boas and pythons, having evolved once in pitvipers and multiple times in boas and pythons.
47.
While convergent evolution and parallel evolution are both forms of recurrent evolution they involve multiple lineages whereas recurrent evolution can also take place in a single lineage.
48.
As is the case with many of the cichlid species found in Lake Tanganyika, parallel evolution between distinct breeding colonies has resulted in several different colour variants developing.
49.
That prompted the question : Did chickadees and titmice independently evolve their seed-storing behavior _ so-called parallel evolution _ or are titmice actually more closely related to chickadees?
50.
This becomes a parallel evolution of spells to foreign gods or demons that were once acceptable, and frames them into a new Christian context, albeit demonic and forbidden.
