The direct ancestor of the modern cat was the Kaffir cat of ancient Egypt.现代猫的直系原种是古埃及的卡菲尔猫。The wild ancestor of the pea can still be found in some highland areas of Africa.在非洲的某些高原地带还能找到豌豆的野生原种。Plants grown from seed are not always true to type.由种子生长的植物有时并不与原种完全相同。