http://horseshoe-crabs.com Horseshoe-Crabs.com a web site devoted to the horseshoe crab Wed, 11 Jan 2012 13:37:28 +0000 hourly 1 http://wordpress.org/?v=3.3.1 http://horseshoe-crabs.com/horseshoe-crabs-life-cycle-on-video/comment-page-1/#comment-362 RHC Sat, 31 Dec 2011 13:22:34 +0000 http://horseshoe-crabs.com/?page_id=148#comment-362 A few comments on the video; the trilobite larvae do not have a gut and do not feed on anything. American horseshoe crabs start feeding at the second instar stage. Timing of the major life history events is dependent on physical and chemical environmental conditions and may not be a strict as suggested. Life span is unknown, but is estimated at up to 25 years based on tagging studies from the 70s. I would consider this age a minimum possible length of life, but others may disagree; no one knows. A few comments on the video; the trilobite larvae do not have a gut and do not feed on anything. American horseshoe crabs start feeding at the second instar stage. Timing of the major life history events is dependent on physical and chemical environmental conditions and may not be a strict as suggested. Life span is unknown, but is estimated at up to 25 years based on tagging studies from the 70s. I would consider this age a minimum possible length of life, but others may disagree; no one knows.

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