Most bryozoans live in the sea, but there are also many species in fresh water. The bryozoan genus Metrarabdotos has been used as a textbook example in evolutionary biology and paleontology, showing ...

Sometimes, Darwinian natural selection stumbles upon the same solution more than once, in a process known as convergent evolution. Here are our favorite examples of evolution making the same creature, ...

A new analysis of roughly 25,000 amino acid substitutions from evolved E. coli shows that adaptive laboratory evolution samples less than half of the possible amino acid exchanges, constrained by the ...