There's not one gray alien _ it's sort of a parallel evolution to what we've had on this planet.
22.
Recurrent evolution caused by convergent and parallel evolution, and recurrent evolution caused by environmental swings, are not necessarily mutually exclusive.
23.
:* " Birds appear to offer, in their behavior, neurophysiology, and neuroanatomy a striking case of parallel evolution of consciousness.
24.
"Parallel Evolutions " concluded with a special art event Berry and Hale collaborating before a packed audience at the museum.
25.
Whether this signifies that the genus is an ancestor of modern taxa or represents a case of parallel evolution is unknown.
26.
The different forms of eye in, for example, vertebrates and molluscs are examples of parallel evolution, despite their distant common ancestry.
27.
While parallel evolution can produce similar traits from a single proto-species in similar environments, it never produces exactly the same species.
28.
Of note, the arthropod mitochondrial genetic code has undergone parallel evolution within a phylum, with some organisms uniquely translating AGG to lysine.
29.
Alternatively, ancestral spiders may have had simple palpal bulbs, with parallel evolution of more complex bulbs in the Mesothelae and the Entelegynae.
30.
No mutations are, however, attested in Gaulish material so a parallel evolution of the phenomenon in the neo-Celtic languages is also possible.
