Planarians


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Planarians

 

a group of invertebrates of the suborder Tri-cladida of the class Turbellaria. Planarians are quite large, reaching a length of 35 cm. They are distributed throughout the world. The worms live in freshwaters and, less frequently, in seas; in the tropics they are also found in the soil. They feed on small invertebrates. Fishes do not eat planarians because the skin contains poison glands.

References in periodicals archive ?
Dryg expression in regenerated sexual planarians following exposure to BPA or E2 after ablation
"The fact that the marker we discovered is expressed not only in planarians but also in humans suggests that there are some conserved mechanisms that we can exploit.
Untreated planarians exhibited normal gliding behavior (Figure 1(a)), which was quantified as spontaneous planarian movement (pLMV).
"Human counterparts exist for most of the genes that we have found to regulate the activities of planarian stem cells," said Sanchez Alvarado.
He pinpointed the locations of stem cells and studied how far they dispersed using RNA whole-mount in situ hybridization (WISH), specifically adapted to planarians in Sanchez Alvarado's lab.
Endemic and exotic land planarians in the United States with a discussion of necessary changes in the Rhynchodemidae.
(OK, it's not likely to work with an earthworm, but planarians are excellent candidates for this experiment.) Biology offers just as many fun surprises as physics does.
Planarians, a type of flatworm, are the lowest form of life that possesses an integrated neural network organized in a manner that many consider to represent the earliest brain.
Pax6 related genes have been found in all bilateria analyzed so far, ranging from planarians to humans.
This fact is an important neuroevolutionary advance, since we did not observe inhibitory synapses in planarians, neither in annelids (Palacios-Pru et al.