The Life of an Earthworm
Virtual Dissection Lab
Earthworms are often eaten by birds of all varieties and fish. Fishers use earthworms as a cheap bait to lure in fish.
Most, if not all, of earthworms, live in forests. They reside in mostly clay soils due to the ease of burrowing through soft clay. There is also an abundant population of earthworms in grasslands.
Adaptations of an earthworm include the slime that aids in movement across different surfaces and muscles in each ring-like segment.
Earthworms primarily eat soil. However, they also eat decomposed animal and plant matter.
Evolutionary relationships of an Earthworm
There are several variations of earthworms!
segment, anterior and posterior ends, setae, mouth, prostomium, ventral surface, septum, etc.
crop, gizzard, seminal vesicles and receptacles, heart, pharynx, intestine, etc.
Digestive System in Detail
crop, mouth, pharynx, gizzard, intestine, and esophagus.
Humans Impacts on Earthworms
Facts about Earthworms you Probably did Not Know!
- Earthworms do not have eyes but they do possess light and touch sensitive organs
- earthworms breathe through their skin
- in one day, earth worms eat up to a third of their weight
- earthworms may live up to 6 years!
- the longest Lumbricus terrestris ever recorded was 30 cm long and weighed 11.2 g!
Map of most Common Earthworm Locations
Below are some pictures from the earthworm dissection we did in class: