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Social factors in ants
A doctoral thesis read at the CREAF, at the UAB, attempts to characterise the social factors involved in the differentiation between workers and queens in ant colonies. Investigating ants' behavioural mechanisms, both physiological and pheromonal, this work confirms that both the queen and the workers influence...
The rise and fall of South American Miocene crocodiles
9 million years ago in South America lived up to 14 species of crocodiles, at least 7 of which shared the same geographical area, an abundance of closely related crocodiles that remains unparalleled to this day. The finding has been published today in the journal...
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