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Biologie
26.11.2011 The latest buzz on insects is that they could be implanted with devices like tiny cameras, microphones and gas sensors – to go places humans can’t.
30.12.2011 Nur rund 20 Millimeter groß ist der grün leuchtende Mistkäfer, aus dem US-Forscher der Uni Michigan einen schwirrenden Spion und Lebensretter machen wollen.
Abkommen und Gesetze weltweit sollen Ozeane und ihre Bewohner vor Plastikmüll schützen. Doch noch immer sterben viele Seevögel, weil Plastikreste ihre Mägen verstopfen. Besonders schlimm ist es im Ärmelkanal.
Aktuelle Tweets aus Naturwissenschaft und Technik
Flickr: urjsa’s Photostream
Solar Power Plant
Bild: Pere Tubert Juhé
fish-over-fish illustration
Bild: HikingArtist.com
Wissenschafter lesen Gedanken
Bild: FlickrCC / Liz Henry
Why plant 'clones' aren’t identical – University of Oxford
Bild: FlickrCC / BlueRidgeKitties
Waldschutz – Artenschutz – ´Klimaschutz´ | Wissen | Deutsche Welle | 23.05.2011
My Chromosomes
My Chromosomes
And segments that match those from various geographies… Very interesting that I show more Finnish ancestry than Estonian, with both countries visible to each other across the Baltic Sea and with languages as similar as Spanish and Portugese.
(Perhaps I should not be surprised that Estonia keeps winning the Finnish Wife Carry competitions, since "deep within Finnish tradition... It was apparently common practice for men to steal women from local villages." BBC =)
From a earlier analysis of just my Y-chromosome (which can only be passed down from a father to a son, and thus can be analyzed without any mixing over the generations), I learned a phenomenal amount about my distant history, back from the second exodus from Africa 50,000 years ago, through Samoyed breeding, to the modern day region of Estonia. (In both cases, they just had my DNA and no other information about me.)
All of my known relatives are Estonian.
23andMe looks for a larger number of point mutations (SNPs for short) across all of my chromosomes and mitochondrial DNA (which passes down exclusively through the maternal line). Here is what they found on the paternal line:
Haplogroup: N1c1, a subgroup of N1
Highlight: N1c spread from Central Asia to Europe at the end of the Ice Age.
Populations: Saami, Indigenous Siberians, Finns, Estonians...
Bild: jurvetson
Biologische Vielfalt
Der Dreck perlt einfach ab
Das haarige Geheimnis der Geckos
Google Doodle: Apr 25, 2003 50th Anniversary of Understanding DNA
Welt der Physik: Strichcode-Scanner identifiziert Zebras
Bild: FlickrCC / johncooke