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Cephalopods continue to astound us on a daily basis. New research has shown that deep sea cephalopods not only have incredible camouflage powers, but can switch between being transparent and opaque at will. For sea creatures, the best type of camouflage depends greatly on the cond [url=https://www.cups-stanley.de]stanley isolierkanne[/url] itions and the depth. When it comparatively light, transparency is the best def [url=https://www.cups-stanley.co.uk]stanley quencher[/url] ense, but in the deep ocean where predators provide their own light sources, being a less reflective, dark color protects better. The octopus Japetella heathi and the squid Onychoteuthis banksii both demonstrate the ability to do either switching according to changes in depth, visibility, light sourc [url=https://www.stanley-cups.us]stanley us[/url] es. This just adds to the already substantial collection of awesome camouflage stories about cephalopods. https://gizmodo/group-sex-among-the-giant-cuttlefish-5851912 https://gizmodo/another-reason-why-cuttlefish-are-masters-of-disguise-5800891 https://gizmodo/squids-and-octopi-imitate-color-despite-being-colorblin-5804055 Photo by Sarah Zylinski/Duke University BiologycephalopodsEvolutionScienceZoology Kycl If DrawSomething Were Invented In the 90s, It Would Have Worked Like This
No, this isn ;t someth [url=https://www.cup-stanley.at]stanley thermoskannen[/url] ing out of an Octavia Butler novel. Its Tetrahymena thermophila 鈥?a single-celled organism that goes way beyond male and female. It has seven different sexes to choose from. Now a new study published in PLOS has finally made sense of its bizarrely complex and seemingly random sex life. T. thermophila are egg-shaped unicellular eukaryotes that [url=https://www.stanley-mugs.us]stanley thermos mug[/url] can be found in freshwater. But unlike their asexually reproducing single-celled brethren, these organisms have a rather unique sexual stage to their life cycle that works to increase their reproductive chances. Heres how it works. First, any T. thermophi [url=https://www.cup-stanley.us]stanley cup[/url] la can mate with any other mating type except its own. So far so good. But heres where it starts to get a bit complicated. After two cells mate, the offspring can be one of seven different sexes. Each of these cells has two genomes, and each of them are contained within their own separate nucleus. The researchers, a team led by Marcella D. Cervantes and Eduardo Orias, liken this genome to our ovaries or testes. They contain all the genetic information required by the offspring, while the working genome controls the operation of the cell including its sex . Its at this point that Ill let Stephanie Pappas from LiveScience take over: When two Tetrahymena fuse in their version of single-cell sex, they produce a gamete nucleus, which is the protozoan equivalent of a fertilized egg in humans. This fertilization nucleus starts making copies of itself, some of w

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