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Edge effects and habitat fragmentation: the main causes of species extinction
The science of conservation biology was developed during the seventies and eighties, when society started to become aware of the importance of addressing the...
Living cities: 4 practical ways you can help local wildlife
Today, 55% of the world’s population lives in urban areas and, by 2050, the proportion is expected to reach 68%. Urbanisation can bring great...
Field guide: identifying animal footprints, traces and signs
Habitat loss or destruction is a direct consequence of our current economic and social system, as well as one of the greatest threats to...
Beyond veganism: Capitalism, Feminism and Self-awareness
Talking about the pros and cons of veganism has become a sort of war of words. Anyone who holds a position on either side...
Animal communication: honest, dishonest and costly signalling
How do animals communicate?
Animal communication is the transfer of information between individuals and groups of animals. This could be intraspecies communication, such as sounds...
Reproductive strategies and mating systems: the foundations of sexual selection in animals
For many years, it has been been thought that living beings were basically organisms that are born, grow, reproduce and die, or that they...
Animal’s social behavior: Group living
The need for socialization is not exclusive to human beings. Instances of social activity can be found in many species in the animal kingdom....
Creatures on the move: understanding animal migration
When you think of animal migration, which animals first come to mind? Geese? Seabirds? Well, it’s true that many birds migrate during the year....
Too hot? Too cold? How animals survive in extreme temperatures
In Barcelona, summer has just arrived. Temperatures are rising and behaviours begin to change. We start to drink more, wear less and switch on...
Birds, their different beaks and the functions they perform
Birds are a class of vertebrates with more than 18,000 different species. Of the various features that are common to all birds, perhaps the...
Why does dwarfism occur in nature? Pygmy animals and their evolution
Size matters in the animal world. In colder climates, being large helps minimise the loss of body heat. For a large predator, body size...
Cetaceans. The small and giant mammals of the oceans
We’re all able to recognise a dolphin, an orca or one of the whale species. These animals are part of the order of cetaceans...
Re-imagining the wild: the art of nature writing, past and present
What is nature writing?
Nature writing in not a single genre. It’s a term that encompasses a great range of literary forms. Whether it’s a...
Are there gay animals in nature? Homosexuality in the animal world
When it comes to homosexuality, for many people the recurring idea is that it’s something unnatural. But what does unnatural really mean? The definition...
Insatiable invertebrates: 4 predatory insects and arachnids
What’s the difference between insects and arachnids?
Class insecta
Of the 1.5 million species that scientists have catalogued, around two thirds are insects. Insects come in all...
