Just for reference, mammals have ~3 billion basepairs, whereas insects have just 300 million.
Just for additional reference.
FROM:Database of Genome Sizes (DOGS)
ORGANISM Homo sapiens COMMON_NAME Human CLASSIFICATION eukaryota; metazoa; chordata; vertebrata; tetrapoda; mammalia; eutheria; primates. COMPLETED no GB_RELEASE 92.0 GB_ENTRIES 365804 GB_BASEPAIRS 154817348 GENOME_SIZE 3400000000 REF_TYPE 1 book REF_AUTHOR Wen-Hsiung Li REF_TITLE Molecular Evolution REF_PUBLISHER Sinauer Associates, Inc. REF_ADDRESS Sunderland, Mass., USA REF_PAGES 383 REF_YEAR 1997 ORGANISM Amoeba proteus COMMON_NAME Amoeba proteus CLASSIFICATION amoeba COMPLETED no GB_RELEASE GB_ENTRIES GB_BASEPAIRS GENOME_SIZE 290000000000 REF_TYPE 1 book REF_AUTHOR Wen-Hsiung Li REF_TITLE Molecular Evolution REF_PUBLISHER Sinauer Associates, Inc. REF_ADDRESS Sunderland, Mass., USA REF_PAGES 383 REF_YEAR 1997 // ORGANISM Amoeba dubia COMMON_NAME Amoeba dubia CLASSIFICATION amoeba COMPLETED no GB_RELEASE GB_ENTRIES GB_BASEPAIRS GENOME_SIZE 670000000000 REF_TYPE 1 book REF_AUTHOR Wen-Hsiung Li REF_TITLE Molecular Evolution REF_PUBLISHER Sinauer Associates, Inc. REF_ADDRESS Sunderland, Mass., USA REF_PAGES 383 REF_YEAR 1997