Chastity belts were not first invented in mediaeval times - members of many animal groups have evolved similar mechanical safeguards to ensure their paternity. Male dwarf spiders, for instance, use mating plugs to block off ...
Plants & Animals
Jun 10, 2014
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Observations made over the past 29 years in Kenya as part of one of the world's longest-running studies of a wild primate show how having offspring influences the health of female baboons. These observations highlight that ...
Plants & Animals
May 19, 2014
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Two grasshopper species have been examined to see if they modify their fleeing strategies when repeatedly approached by a predator.
Plants & Animals
Apr 28, 2014
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The boldest black-lined rainbowfish are those that are born in the wild. Also more fearless are those that analyze information both sides of their brains. This is the conclusion of Australian researchers Culum Brown and Anne-Laurence ...
Plants & Animals
Apr 10, 2014
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At first glance, colonies of thousands of social spiders all look the same and are busy with the same tasks. Not so, says researchers Carl Keiser and Devin Jones of the University of Pittsburgh in the US, after carefully ...
Plants & Animals
Mar 20, 2014
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Populations of endangered salmonids are supported by releasing large quantities of hatchery-reared fish, but the fisheries' catches have continued to decrease. Earlier research has shown that certain behavioural traits explain ...
Ecology
Mar 13, 2014
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A timid jumping spider uses the scent of ants as a secret weapon to save itself from becoming the somewhat soggy prey of the predatory spitting spider. The downside to this plan is that jumping spiders are also a favorite ...
Plants & Animals
Mar 11, 2014
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Ants, wasps and humans live in highly complex societies. Our organizations share some basic features of group life, like individuals trying to find the balance between cooperation and conflict. Understanding what factors ...
Plants & Animals
Feb 18, 2014
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Birds that hoard food for a rainy day better be sure that there are no great tits around to spy on where they hide their reserve of seeds and nuts. So says Anders Brodin and Utku Urhan of the University of Lund in Sweden, ...
Plants & Animals
Feb 12, 2014
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Given a choice, male dyeing poison frogs snub empty pools in favor of ones in which their tiny tadpoles have to metamorphose into frogs in the company of larger, carnivorous ones of the same species. The frog fathers only ...
Plants & Animals
Jan 20, 2014
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