Environmental change is the selective force that preserves adaptive traits in organisms and is a primary driver of evolution. However, it is less well known that evolutionary change in organisms also trigger fundamental changes ...
Evolution
May 23, 2012
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In the absence of eyes, the fresh water polyp, Hydra magnipapillata, nevertheless reacts to light. They are diurnal, hunting during the day, and are known to move, looping end over end, or contract, in response to light. ...
Plants & Animals
Mar 4, 2012
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Biologists worldwide subscribe to the healthy herds hypothesis, the idea that predators can keep packs of prey healthy by removing the weak and the sick. This reduces the chance disease will wipe out the whole herd, but could ...
Ecology
Jun 23, 2011
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There are many different kinds of crustaceans, ranging from the shellfish Swedish people eat at traditional crayfish parties every August to tiny relatives found in their millions in both freshwater and saltwater. One of ...
Biotechnology
Mar 22, 2011
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Life for the common water flea Daphnia must be tough. As a favorite meal choice for aquatic predators, they may need to make some creative morphological or behavioral changes for survival.
Plants & Animals
Jul 19, 2023
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New research, presented at the SEB Centenary Conference 2023, reveals that sunscreen contamination may be less harmful to wildlife than previously thought.
Plants & Animals
Jul 5, 2023
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Water fleas, or Daphnia, ensure their survival by reacting to a signal substance of their predators (fish) with flight. The zoologist Meike Anika Hahn from Professor Dr. Eric von Elert's research group at the University of ...
Plants & Animals
May 9, 2019
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Two new studies by Osaka University researchers provide insights on why male and female bodies of the same species differ. The studies show factors that regulate the expression of doublesex1, a gene responsible for the growth ...
Plants & Animals
Nov 8, 2017
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Water fleas can thwart their enemies by growing defensive structures such as helmets and spines. What's more, this predator-induced 'arming' process is not a one-size-fits-all approach - they can even tailor their defensive ...
Plants & Animals
Jul 6, 2016
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Imagine that the players on your favourite football team were smaller than their opponents, and had to play without helmets or pads. Left defenseless, they would become easy prey for other teams. Similarly, changes in Canadian ...
Ecology
Sep 6, 2012
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