People who are pre-herders and pre-agriculturalists. Hunter-gatherers still exist in areas where herding and agriculture are not possible (e.g., Kalahari desert). The early vegetarian hominids became tool-users, employing naturally shaped stones to break open large bones abandoned by carnivores. Later they became tool-makers, and this initiated a period of about two million years of hunter-gathering. Herding started only twenty thousand years ago, and agriculture began a mere nine thousand years ago. Hyacinth bean
See: Lablab niger. Hyaline
A mycological term that means a tissue which is lacking pigments and is almost transparent. Hybrid
The offspring of a cross between two different genera, species , or varieties. Note the specialised meaning of hybrid variety. Hybrid seed
See: Hybrid variety.
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