Category: Invertebrates
These tube shaped, segmented worms commonly live in the soil and feed on both live and dead organic matter. Earthworms are hermaphrodites, meaning they have both male and female reproductive organs. There are over 6000 named species of earthworms, ranging in size from less than half an inch to over nine feet long! Earthworms have no doubt played a keystone role in human agriculture, as their activity aerates the soil and mixes in organic material, creating conditions favorable for plant growth.
Rub some dirt on it!
Could it be we have been too good at ridding our bodies of parasitic worms? Believe it or not, our efforts at keeping squeaky-clean and sanitary in the developed world may be contributing to increased allergies, asthma, psoriasis, even autoimmune diseases. The human immune system, having evolved with parasitic worms, recognizes them, and has learned to reduce inflammation and stimulate healing when these tiny intruders are sensed. While getting worms may be seen as too high a price to pay for many, for people suffering from severe allergies or colitis, it may be worth it. Victims of multiple sclerosis and Crohn’s disease have shown a promising reduction in symptoms (even remission in Crohn’s) after ingesting whipworm eggs - a treatment that may be worth it to some until a cure is found!
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Discover Animals is a web-based educational resource offered by the NAIA