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Evolution & Behaviour

showing 91-95 of 144 breaks
Early humans inhabited North Africa earlier than thought

East Africa is notably known for yielding the earliest Oldowan stone tools and hominin butchered animal bones. They were excavated at the site of Gona in the Afar (Ethiopia) dated to 2.6 million years ago (Ma). Hence, most paleoanthropologists believed that human ancestors and their... click to read more

  • Mohamed Sahnouni | Professor at National Center for Research on Human Evolution (CENIEH), Burgos, Spain
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Algeria
Ain Boucherit
Oldowan
cutmarks
early human occupation
Views 6460
Reading time 3.5 min
published on May 22, 2019
How did ant-plant interactions evolve?

What are those ants doing? No, over there. Ants are all kind of the same, right? Nope. Ants are diverse - there are actually more kinds of ants than birds. Some live underground, and some use plants as places to hunt for food or... click to read more

  • Matthew P. Nelsen | Research Scientist at The Field Museum, Integrative Research Center, Chicago, IL, USA
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  • Richard H. Ree | Curator at The Field Museum, Integrative Research Center, Chicago, IL, USA
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  • Corrie S. Moreau | Curator at Cornell University, Departments of Entomology and Ecology & Evolutionary Biology, Ithaca, NY, USA
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symbiosis
insects
flowering plants
Views 4180
Reading time 4 min
published on May 3, 2019
Emergent division of labor among clonal ants

What are the benefits of living in society? Sociality has long been proposed to be beneficial because groups can divide labor among individuals to increase their efficiency. Some of the most sophisticated forms of division of labor are found in social insects, such as honeybees,... click to read more

  • Yuko Ulrich | Junior Group Leader at The Rockefeller University, NY, USA & University of Lausanne, Lausanne, Switzerland
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  • Daniel J. C. Kronauer | Associate Professor at The Rockefeller University, NY, USA
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  • Christopher K. Tokita | PhD candidate at Princeton University, NJ, USA
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ants
division of labor
automated behavioral tracking
Views 3826
Reading time 4 min
published on Mar 11, 2019
Salmon are shrinking and you can see it in their genes

The environment in which we and other living beings reside has been quickly modified over the last decades due to climate change and the expansion of human activities. This can result in characteristics of individuals (for example, size at reproduction) that previously gave them the... click to read more

  • Yann Czorlich | PhD student at University of Turku, Natural resources institute Finland, University of Helsinkí
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  • Craig Primmer | Academy Professor at Organismal and Evolutionary Biology Research Programme - Institute of Biotechnology - Helsinki Institute of Sustainability Science, University of Helsinki, Helsinki, Finland
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age at maturity
Atlantic salmon
Views 3109
Reading time 4 min
published on Mar 4, 2019
How Spiders Catch the Air for Their Flight

Bacteria or sperm cells can swim using a hair-like structure. Other organisms use similar structures to fly, like dandelion and thistle seeds with their parachute hairs. But this mode of flying is not limited to plant seeds. One weird aviator is the spider. Using their... click to read more

  • Moonsung Cho | PhD Student at Institute of Biotechnology, Technical University of Berlin, Berlin, Germany.
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ballooning
flying spider
spider silk
soaring
aerial dispersal
Views 3365
Reading time 3.5 min
published on Feb 25, 2019