Linked from
The 30 pages that link to Parental investment, each with the reason it gives.
Sexual selectionRelated: Unequal investment can shape which sex competes and which chooses.
OviparityRelated: Egg-laying species vary from abandoning eggs to guarding them intensively.
NestRelated: Nest building and defense are forms of investment in offspring survival.
OvipositionRelated: Choosing a protected egg site can substitute for care after laying.
PolyandryRelated: Polyandry is linked to how males and females divide care and reproductive effort.
Sex-role reversalRelated: The sex investing more in offspring often becomes the more selective mate.