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How do red crabs coordinate such that they migrate at the same time? (what type of...

How do red crabs coordinate such that they migrate at the same time? (what type of cues might say it is time to leave, what physiological mechanisms might be at play?)

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Red crabs migrate because they have to breed in a certain area, and they are migrating in response to rainfall. Climate normally influences migration through rainfall has a valuable impact. A light or late rainy season could push their journey forward or back months. Their migration to specific locations is required for their breeding. These animals cannot live and breed in the same ecosystem, so any obstacle between one location and the other threatens their survival as a species. Crustacean Hyperglycaemic Hormone (CHH) that enables the crabs to make the most efficient use of their stored energy in the muscles (glycogen) and its conversion to glucose to fuel the migration. Glucose levels can regulate the hormone release during migration.

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