May is for Mayflies
River surveying in the Thames today we found several mayfly nymphs; aquatic juvenile mayflies equipped with gills for underwater living. Mayflies spend most of their lives in this form. The adult life of a...
River surveying in the Thames today we found several mayfly nymphs; aquatic juvenile mayflies equipped with gills for underwater living. Mayflies spend most of their lives in this form. The adult life of a...