Webflatworm, also called platyhelminth, any of the phylum Platyhelminthes, a group of soft-bodied, usually much flattened invertebrates. A number of flatworm species are free-living, but about 80 percent of all flatworms are parasitic—i.e., living on or in another organism and securing nourishment from it. They are bilaterally symmetrical (i.e., the right and left … WebAug 13, 2013 · (Phys.org) —Tufts University biologists using new, automated training and testing techniques have found that planarian …

Flatworms - definition of Flatworms by The Free Dictionary

WebThe Tufts researchers tested the memory of planarians, simple flatworms that are renowned for their regenerative properties. These worms can be cut up into pieces, and … WebJun 1, 2010 · The memory-transfer episode. Feeding trained worms to their cannibalistic brothers, James V. McConnell argued that memories are encoded in the structure of … duck zoo animal

Decapitated worms regenerate heads with old memories

WebThe flatworm nervous system: pattern and phylogeny The flatworms occupy a position at the base of the metazoan phylogenetic tree; they have a bilateral symmetric nervous system and an archaic brain. The following aspects, brought into focus by the use of new methods, will be dealt with in the present paper. 1. WebBiochemical memory experiments. In 1955, Thompson and James V. McConnell conditioned planarian flatworms by pairing a bright light with an electric shock. After … WebOct 16, 2013 · Cross-section of a planarian Jubal Harshaw via Shutterstock. E arlier this year, scientists published a bizarre finding: A decapitated flatworm that grows a new … r bacaetava 191