So far, however, Williamson's original paper has not been retracted, which is what happens when an idea is so off, or so insupportable that it is no longer scientifically plausible.
Caterpillars evolved from onychophorans by hybridogenesis.
Caterpillars did not evolve from onychophorans by hybridogenesis.
...In most cases mentioned above, the viruses have limited or no effect on the wasp but are pathogenic to the parasitoids’ hosts. Therefore, it is quite tempting to speculate that they originated from lepidopteran pathogens rather than hymenopteran. The isolated viruses are all capable of replicating in host (lepidopteran) cells in which they have pathologic effects, although they are transmitted by the apparently unaffected wasps. During the course of evolution, these viruses might have been “domesticated” by certain wasps; in some cases, viral genetic material may have become integrated into the wasp genomes and tissue-speciﬁc replication mechanisms evolved that are regulated by the wasps...
...Bracoviruses and ichnoviruses, in which there is integration of the genome into wasp chromosomes, with single and multiple DNA molecules incorporated into particles (Albrecht et al., 1994; Stoltz et al., 1981), may represent the next stage of an evolutionary process (operating independently within the two wasp groups) towards complete dependence of virus functions on the wasp. ...
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