Be practical, Hugh; can't change a scientific breeding system to pamper one servant.

Polygamous breeding systems arise when females are able to raise broods without the help of males.

There was no fixed breeding system for these horses until the 1780s.

The breeding systems of jacamars have not been studied in depth.

The family generally has a monogamous breeding system.

After 1900, black bulls were removed from the breeding system, and the black colour vanished.

Terminal crossbreeding is a breeding system used in animal production.

Critics set the games apart by noting the in-depth breeding system seen in this game.

Large relative antler size in deer is associated with strongly polygynous breeding systems.

The breeding system is said to be a dispersed lek with each male holding a territory of about 1-2 hectares.