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Stone quarrying has affected population in some areas of East Khasi Hills district.
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The blue earthworms migrate twice annually uphill in spring and downhill in autumn on inclines of up to 80-85 degrees to evade environmental factors that affect them.
| Photo Credit: Special Arrangement
Stone quarrying has affected population in some areas of East Khasi Hills district.
An army of blue earthworms, some measuring up to 1.6 feet, migrate about 300 metres up and down the steep slopes in Meghalaya’s East Khasi Hills every year.
Scientists of the Zoological Survey of India (ZSI) have for the first time prepared a report on the two-way mass migration in the district’s Mawlyngot area.