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Earthworms

(Lumbricina)

 

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.

https://en.wikipedia.org/wiki/Earthworm

 

Data & Facts

Scientific Classification
Kingdom - Animalia
Phylum - Annelida
Class - Oligochaeta
Order - Megadrilacea

 
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Interesting Animal Facts

Cephalopods: Masterminds of the Ocean.

Octopi, cuttlefish, and squids - all cephalopods - have been observed engaging in amazing feats of intelligence (perhaps unsurprising, as cuttlefish and octopuses have the highest brain-to-body mass of all invertebrates). Their suction-cup covered arms are dexterous, and octopuses have been observed putting them to use throwing rocks, opening screw-top jars, even picking up and gathering coconut shells to build fortresses for themselves. Squids, for their part, have been observed hunting cooperatively and are able to communicate with one another via color changes, patterns, and flashing to one another - sometimes using different sides of their bodies to broadcast different signals to multiple squids! Just how smart are they? As they are typically elusive and so very different from humans, we aren’t sure yet - but we do know the question is not “Are they intelligent?” but “How intelligent are they?”

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