What are earthworms? Who has not seen an earthworm crawling in and out of the soil? These long cylindrical, long bisexual organisms of the genus Lumbricus are also informally known as “dew-worm”, “night crawler”, “rainworm”, and “angleworm”. Based on the species, earthworms range from 10 mm long and 1 mm wide to 3 m long and over 25 mm wide. (Wikipedia) Terrestrial Lumbricus grows to around 360 mm in length. Besides being a biologists organ physiological material, he reddish to…
