Evolution: mothers 'sign' their eggs where cuckoos lurk.
Dall
Sasha R X
SR
Centre for Ecology and Conservation, University of Exeter in Cornwall, Tremough Campus, Penryn TR10 9EZ, UK.
D000818:Animals; D001522:Behavior, Animal; D005075:Biological Evolution; D001717:Birds / Q000502:physiology; D008425:Maternal Behavior; D010063:Ovum; D012641:Selection, Genetic; D046370:Sparrows / Q000235:genetics* / Q000502:physiology