Evolutionary Biology

The venom sac (Photo: Elad Hayal Laboratory, University of Haifa – Oranim Campus)

A bacterium is passed from generation to generation through wasp venom.

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Research reveals a unique way in which a bacterium hitches a ride on the venom of a parasitic wasp to pass from generation to generation, offering a new direction for studying the interactions between insects and microorganisms
the call of the crow. Illustration: depositphotos.com

The crows know how to count... out loud!

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Research shows that crows can intentionally produce up to four vocalizations in response to specific cues, indicating a non-symbolic number system and vocal control similar to that of human infants. This ability offers a foundation
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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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

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

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Cosmic scene with DNA, stars, solvents and atomic circles in oral flow.

Conquerors and apes

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