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Evolutionary Biology

The evolution of horses. Image: Mcy jerry w CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=98977446

A new evolutionary theory explains why animals shrink over time

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Research: A New Understanding of Animal Size Changes Over Time: Competition, Ecological Pressures, and Cope's Law
Reconstruction of a Neanderthal family in the Neanderthal Museum in Croatia. Illustration: depositphotos.com

The encounter between Neanderthals and modern man as told by their genomes

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Simulation of the feathered dinosaur Zhenyuanlong. Image: Emily Willoughby/Wikimedia.

How dinosaurs became birds

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In the figure: networks with a homogeneous structure (A) differ from heterogeneous networks (B) in their ability to adapt to changes through improvisation. In networks of the first type (homogeneous), each vertex affects a limited number of other vertices. As a result, chaotic dynamics are created and the search process (exploration) does not converge to a stable state. In the heterogeneous networks, on the other hand, some of the vertices (marked as large circles) affect large parts of the network and create dynamics leading to a steady state. Courtesy of the Technion.

The Improvising Cell: Researchers present a new model of biological adaptation to unexpected challenges

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Pictured are modern dolphins and an ichthyosaurus, an extinct marine reptile. Each came from a different land group, but independently they adapted to life at sea. image courtesy of Lindgren et. al, Nature Publishing Group

The repeated evolution of land creatures that move to the sea depends on changes in the marine environment

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Dolly's fashion and Louis's passion - from the book Avni Marma Ma Marrakesh - Stephen Gay Gould

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Conquerors and apes

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