When selecting pressure is reduced and parasitism risk decreases, defence mechanisms are quickly abandoned.

Doctoral Researcher (PhD student) in Ecological Networks and Biodiversity Conservation

Behavioral traits are thought to be rarely or slowly lost when selection relaxes, but attempts to confirm this are rare. At the same time, behaviors can be

Specific host selection efforts by mother cuckoos might not be worth the benefits the chicks will gain when growing.

Ecological Statistician

Combined evidence reveals the origin of a rapid range expansion despite retained genetic diversity and a weak founder effect.