#popularizationUnmoderated tagAll postsTrending CommunitiesSteemitCryptoAcademyNewcomers' CommunitySteemit Feedbackআমার বাংলা ব্লগKorea • 한국 • KR • KOAVLE 일상STEEM CN/中文WORLD OF XPILARSteem POD TeamSteem AllianceBeauty of CreativityTron Fan ClubExplore Communities...#popularizationTrendingHotNewPayoutsMutedlxcmax (37)in #animal • 7 days ago • NoneWhat secrets are hidden in the blue blood of the Chinese horseshoe crab, which has survived for 400 million years?Known as a living fossil in the history of biology, the Chinese horseshoe crab(中华鲎) has survived five mass extinctions…