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evolution

number of breaks: 38

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Feisty fish and birds with attitude: Why does evolution not lead to identical individuals?

 “Survival of the fittest” is synonymous with adaptive evolution. This catchy phrase suggests that all individuals within a population become identical over time by developing “THE fittest” heritable traits. Yet, in nature, we observe many differences between individuals. For example, sticklebacks (tiny fish) in the... click to read more

Views 1064
Reading time 3 min
published on Aug 31, 2024
Is evolution predictable?

RNA molecules are one of the key biomolecules of life as they appear in organisms as catalysts, building blocks, and information carriers. RNA is made up of sequences of chemical `letters’ called nucleotides, similar to the chemicals that make up DNA sequences. RNA sequences can... click to read more

  • Kamaludin Dingle | Professor at Gulf University for Science and Technology and The California Institute of Technology (Caltech)
Views 1784
Reading time 4 min
published on Dec 22, 2023
Nature favors simplicity and symmetry in biological forms

Looking at nature we see symmetric arrangements in flower petals, simple spirals in snail shells, repeating branching patterns in fern leaves and lung structures, and regular arrangements of proteins in many biomolecules. But why are these symmetric and regular structures so common in biology? There... click to read more

  • Kamaludin Dingle | Professor at Gulf University for Science and Technology and The California Institute of Technology (Caltech)
Views 2514
Reading time 4 min
published on May 26, 2023
Spring: A Season Of New Beginnings And The End Of The Dinosaurs

The extinction of the dinosaurs from space rock is possibly the most famous of all mass extinctions. This ~12 km wide asteroid, about twice as tall as Kilimanjaro, impacted a reef off the coast of the Yucatán peninsula and caused tsunamis, earthquakes, and seiches. Molten... click to read more

Views 2608
Reading time 3.5 min
published on Feb 24, 2023
Salmon evolve quickly as a response to intense harvesting of their prey

Climate change and human activities impact living creatures in complex ways. In response, organisms may acclimate to those challenges during their lifetime or adapt over several generations, through genetic changes. Organisms with characteristics matching best their new environment, such as size at reproduction, will spread... click to read more

  • Yann Czorlich | Postdoctoral Research Fellow at University of Turku, Natural resources institute Finland, University of Helsinkí
Views 3014
Reading time 4 min
published on Feb 20, 2023