Casey W Dunn, Sally P Leys, Steven HD Haddock

2015/5/31

Trends in ecology & evolution

30

5

282-291

Elsevier Current Trends

Animal evolution is often presented as a march toward complexity, with different living
animal groups each representing grades of organization that arose through the progressive
acquisition of complex traits. There are now many reasons to reject this classical hypothesis.
Not only is it incompatible with recent phylogenetic analyses, but it is also an artifact of
'hidden biology', that is, blind spots to complex traits in non-model species. A new
hypothesis of animal evolution, where many complex traits have been repeatedly gained ...