After more than a century of intensive study, scientists have assumed that larvae of non-parasitic invertebrates reproduce only very rarely, but new research by University of Alberta scientists overthrows this conventional wisdom. Graduate student Alexandra Eaves and Dr. Richard Palmer, from the U of As Faculty of Science, have found that asexual cloning by some marine invertebrate larvae is not as rare and enigmatic a phenomenon as previously assumed.
"A wealth of knowledge of how embryos grow has come from studying sea urchin development," said Eaves. "The discovery that these young animals can clone themselves provides an exceedingly rare opportunity to examine how a growing animal can repeat its own early development using a part of its body."
Scattered earlier reports have observed that invertebrate larvae can spontaneously clone but Eaves and Palmer discovered this trait in three new echinoderm groups--sea cucumbers, sand dollars, and sea urchins--offering surprising new insight about chordate evolution. Larval cloning represents an intriguing new dimension to invertebrate life histories including the suggestion that clones may subsequently clone. The research is published in the current edition of the prestigious journal Nature.
Phoebe Dey | EurekAlert!
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The more electronics steer, accelerate and brake cars, the more important it is to protect them against cyber-attacks. That is why 15 partners from industry and academia will work together over the next three years on new approaches to IT security in self-driving cars. The joint project goes by the name Security For Connected, Autonomous Cars (SecForCARs) and has funding of €7.2 million from the German Federal Ministry of Education and Research. Infineon is leading the project.
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At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.
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There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?
At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...
So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics
Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...
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