head kidney development
The process whose specific outcome is the progression of the head kidney over time, from its formation to the mature structure. The head kidney is a pronephros that consists of fused bilateral lobes located in the anterior part of the kidney. It is analogous to the mammalian bone marrow and the primary site of definitive hematopoiesis.
GO:0048534
hematopoietic or lymphoid organ development
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GO:0048793
pronephros development
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