Sentence examples for be an evolutionary dead from inspiring English sources
Unicoloniality may be useful in the short term, as it is for Argentine ants and some other invasive ants, he said, but in the long run it appears to be an evolutionary dead end because social behavior could not evolve.
Many biologists believe that this specialization to particular pollinators like hummingbirds, bats, or hawkmoths can be an evolutionary dead end.
Because this hybrid only very rarely reproduces sexually, it seems to be an evolutionary dead end even though it can live a long time and propagate asexually.
There were many australopithecine species alive at this time, and A. garhi may well be an evolutionary dead end like several others, cautions paleoanthropologist Bernard Wood of George Washington University in Washington, D.C. "These are magnificent fossils," says Wood, but "at this point it's impossible to tell what's ancestral to what".
Also, polyploids are now recognized not to be an evolutionary dead end, but rather the result of a dynamic process of evolution [34].
Uniparental (maternal) organelle transmission should therefore be an evolutionary dead end.
Helanterä et al. suggested that unicoloniality (the ability of ant species to form populations consisting of one or more supercolonies [8], [22]), might be an evolutionary dead-end [22], since selfish behaviour of distantly related nestmates should lead to supercolony instability as predicted by kin-selection theory.
An obstacle facing newly-formed tetraploid individuals is the fact that crossing with diploid relatives generates triploids, generally considered to be an evolutionary dead-end as they tend to produce aneuploid gametes owing to problems of chromosomal pairing and segregation during meiosis.
Because strains of the parasite that secrete the virulent versions of both ROP5 and ROP18 are able to completely defeat the IRG system in laboratory mice, it was thought that these strains could not have co-evolved with mice, because the death of the host can be an evolutionary dead-end for a pathogen.
Fear, it has been well observed, makes people stupid, and an organisation based on it is an evolutionary dead end.
