Curtailing transmission of severe acute respiratory syndrome within a community and its hospital.

Mating in a viscous universe: the race is to the agile, not to the swift.

Population dynamics of small mammals in semi-arid regions: a comparative study of demographic variability in two rodent species.

Detecting sexually antagonistic coevolution with population crosses.

Stochastic elimination of cancer cells.

Costs of immune response in cold-stressed laboratory mice selected for high and low basal metabolism rates.

Kin selection may influence fostering behaviour in Antarctic fur seals (Arctocephalus gazella).

Patterns of morphological integration in marine modular organisms: supra-module organization in branching octocoral colonies.

Absence of nepotism in the harassment of duelling queens by honeybee workers.

Cooler butterflies lay larger eggs: developmental plasticity versus acclimation.

Paternity analysis reveals opposing selection pressures on crown coloration in the blue tit (Parus caeruleus).

Paternal investment directly affects female reproductive effort in an insect.

Soay rams target reproductive activity towards promiscuous females' optimal insemination period.

Sperm competition and the evolution of gamete morphology in frogs.