evolution   38729

« earlier    

[1803.03453] The Surprising Creativity of Digital Evolution: A Collection of Anecdotes from the Evolutionary Computation and Artificial Life Research Communities
Biological evolution provides a creative fount of complex and subtle adaptations, often surprising the scientists who discover them. However, because evolution is an algorithmic process that transcends the substrate in which it occurs, evolution's creativity is not limited to nature. Indeed, many researchers in the field of digital evolution have observed their evolving algorithms and organisms subverting their intentions, exposing unrecognized bugs in their code, producing unexpected adaptations, or exhibiting outcomes uncannily convergent with ones in nature. Such stories routinely reveal creativity by evolution in these digital worlds, but they rarely fit into the standard scientific narrative. Instead they are often treated as mere obstacles to be overcome, rather than results that warrant study in their own right. The stories themselves are traded among researchers through oral tradition, but that mode of information transmission is inefficient and prone to error and outright loss. Moreover, the fact that these stories tend to be shared only among practitioners means that many natural scientists do not realize how interesting and lifelike digital organisms are and how natural their evolution can be. To our knowledge, no collection of such anecdotes has been published before. This paper is the crowd-sourced product of researchers in the fields of artificial life and evolutionary computation who have provided first-hand accounts of such cases. It thus serves as a written, fact-checked collection of scientifically important and even entertaining stories. In doing so we also present here substantial evidence that the existence and importance of evolutionary surprises extends beyond the natural world, and may indeed be a universal property of all complex evolving systems.
evolution  algorithms  analysis 
17 hours ago by euler
Altruism in a volatile world | Nature
"We show that altruists can increase the long-term success of their genotype by reducing the temporal variability in the number of offspring produced by their relatives. Consequently, costly altruism can evolve even if it has a net negative effect on the average reproductive success of related recipients."
Biology  Evolution  Science 
22 hours ago by abiola
Astronaut Spends Year In Space. Now His DNA Is Different From His Twin Brother's | Daily Wire
Scott Kelly rode aboard the International Space Station from March 2015 to March 2016. NASA researchers stated, “Scott’s telomeres (endcaps of chromosomes that shorten as one ages) actually became significantly longer in space,” adding that Kelly had hundreds of “space genes” activated by his flight which changed his “immune system, DNA repair, bone formation networks, hypoxia, and hypercapnia.”
evolution  dailywire 
yesterday by HispanicPundit
Hawaii: Where Evolution Can Be Surprisingly Predictable - The Atlantic
“There are only a certain number of good ways to be a spider in these ecosystems, and evolution repeatedly finds those ways,”
evolution  spiders  hawaii  camouflage 
2 days ago by adegru
How Cheese, Wheat and Alcohol Shaped Human Evolution | Science | Smithsonian
Over time, diet causes dramatic changes to our anatomy, immune systems and maybe skin color
agriculture  evolution  food  history  smithsonian 
3 days ago by jorgebarba
Altruism in a volatile world | Nature
The evolution of altruism—costly self-sacrifice in the service of others—has puzzled biologists1 since The Origin of Species. For half a century, attempts to understand altruism have developed around the concept that altruists may help relatives to have extra offspring in order to spread shared genes2. This theory—known as inclusive fitness—is founded on a simple inequality termed Hamilton’s rule2. However, explanations of altruism have typically not considered the stochasticity of natural environments, which will not necessarily favour genotypes that produce the greatest average reproductive success3,4. Moreover, empirical data across many taxa reveal associations between altruism and environmental stochasticity5,6,7,8, a pattern not predicted by standard interpretations of Hamilton’s rule. Here we derive Hamilton’s rule with explicit stochasticity, leading to new predictions about the evolution of altruism. We show that altruists can increase the long-term success of their genotype by reducing the temporal variability in the number of offspring produced by their relatives. Consequently, costly altruism can evolve even if it has a net negative effect on the average reproductive success of related recipients. The selective pressure on volatility-suppressing altruism is proportional to the coefficient of variation in population fitness, and is therefore diminished by its own success. Our results formalize the hitherto elusive link between bet-hedging and altruism4,9,10,11, and reveal missing fitness effects in the evolution of animal societies.
study  bio  evolution  altruism  kinship  stylized-facts  models  intricacy  random  signal-noise  time  order-disorder  org:nat  EGT  cooperate-defect  population-genetics  moments  expectancy  multiplicative  additive 
3 days ago by nhaliday

« earlier    

related tags

additive  adventuresinmissingthepoint  agriculture  ai  algorithm  algorithms  altruism  analogy  analysis  anatomy  animals  animation  anthropology  apes  api  apologetics  archaeology  archeology  architecture  arstechnica  arthropods  article  assemblage  atari  attention  augumented  autism  behavioral-gen  bio  biodet  biodiversity  biology  birds  blackmirror  bonnes.pratiques  book  books  brain-scan  brain  branding  brassica  breeding  broccoli  cabbage  camouflage  chimpanzees  civilization  classical  cog-psych  cognition  complexity  computer-science  conservation  control  cooperate-defect  cooperation  css  culture  d-brief  dailywire  deep-learning  deep-materialism  defense  dennett  design  discrete  distributed  domestication  drug  drugs  ea  ecology  editorial  eggs  egt  emergence  enlightenment  enseignement  es  evolutionary  evopsych  expectancy  eye  eyes  family  feminine  fire  fitness  food  fossils  fun  fungus  ga  game  games  gaming  gedanken  gender  genetics  geology  geometry  gp  graeber  grapefruit  hallucination  hawaii  health  history  hominid  homo_sapiens  http  human  humanorigins  humans  huntergatherer  hybrid  ideas  indepth  inequality  information  insects  internet  intricacy  jordan-peterson  kenya  kinship  lab  language  leader  learning  lemon  life  lime  logo  lowcode  machine-learning  machinelearning  malaria  man  map  masculinity  mash  mathematics  measure  menstruation  metaparameters  microsoft  modelling  models  moments  multiplicative  music  nautilusmag  neanderthal  neuro-nitgrit  neuro  neurons  new-zealand  nocode  norm  of  opinion  optimization  order-disorder  org:nat  origins  paleontology  paper  pea  philosophy  physics  pluralism  pm  pomelo  population-genetics  pre-history  predator  pregnancy  programming  proxy  psychology  quasicrystal  rad  random  reference  relationships  religion  reputation  revolution  rhizosphere  sampling  science  selective  self  sensor  sex  sfi  signal-noise  smithsonian  smoothness  social  society  software  soil  spearhead  speculation  speed  spiders  sports  strategy  study  stylized-facts  suicide  support  systemsscience  technology  teeth  theology  theory  tiling  time  todo  tools  traits  tree  trust  ui  usability  variance-components  versioning  vertebrates  video  vintoncerf  vision  visualization  webdesign  webdev  whales  williamgibson  windows  within-without  women  👽 

Copy this bookmark: