TeoElectrónica – My Blog https://sobrelavidafeliz.com My WordPress Blog Mon, 17 Apr 2023 22:41:00 +0000 es hourly 1 https://wordpress.org/?v=6.7.2 Frogs have acquired DNA from snakes with the help of parasites https://sobrelavidafeliz.com/2023/04/17/frogs-have-acquired-dna-from-snakes-with-the-help-of-parasites/ https://sobrelavidafeliz.com/2023/04/17/frogs-have-acquired-dna-from-snakes-with-the-help-of-parasites/#respond Mon, 17 Apr 2023 22:41:00 +0000 https://cristoniano.com/?p=790 Many snakes make meals of frogs, but some appear to be transferring their DNA into the amphibians as well. A genetic analysis suggests that parasites shared between snakes and frogs may facilitate the movement of genetic material from one species to another.

The “horizontal” transfer of DNA between species was long considered a rare event that took place only between microbes, but there is growing evidence that the process has been going on all over the tree of life.

Genetic sequences called transposons – …

]]> https://sobrelavidafeliz.com/2023/04/17/frogs-have-acquired-dna-from-snakes-with-the-help-of-parasites/feed/ 0 Why are there so many giants in the deep sea? https://sobrelavidafeliz.com/2023/04/17/why-are-there-so-many-giants-in-the-deep-sea/ https://sobrelavidafeliz.com/2023/04/17/why-are-there-so-many-giants-in-the-deep-sea/#respond Mon, 17 Apr 2023 22:39:52 +0000 https://cristoniano.com/?p=787 n the deepest and coldest parts of the ocean, sea creatures — mainly invertebrates, or animals without backbones — can reach gargantuan proportions. Squids, sea spiders, worms and a variety of other types of animals grow to sizes that dwarf related species around the world. The phenomenon is called gigantism.

The colossal squid (Mesonychoteuthis hamiltoni) in subantarctic waters is about 14 times longer than the arrow Squid (Nototodarus sloanii) common to New Zealand, according to Te Ara the Encyclopedia of New Zealand(opens in new tab). Deep in the remote Pacific waters there’s a sea sponge the size of a minivan. But what is it about deep and frigid ocean waters that causes creatures to grow so big? It may be that survival demands it, and factors in the extremely cold waters enable it to happen.

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