![]() Where is a sea star's head? Maybe just about everywhereĪ new study that combines genetic and molecular techniques helps solve the riddle of sea star (commonly called starfish) body plans, and how sea stars start life with bilateral body symmetry - just like humans - but grow up to be adults with fivefold 'pentaradial' symmetry.Ī new analysis of the bones and muscles in ancient fish gives new clues about how the shoulder evolved in animals - including us. Researchers have developed a novel system to probe a rat's thoughts, finding that animals can control their brain activity to imagine remote locations. Rats have an imagination, new research suggests It also revealed new insights into which parts of cat DNA are most likely to evolve rapidly and how they play a role in species differentiation. ![]() ![]() By comparing genomes of several cat species, the project has helped researchers understand why cat genomes tend to have fewer complex genetic variations (such as rearrangements of DNA segments) than other mammal groups, like primates. ![]()
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