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Artículos sobre Biology

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These little worms are very powerful model organisms, revealing important lessons about human biology. Niharb

Animals in research: C. elegans (roundworm)

Our series, Animals in Research, profiles the top organisms used for science experimentation. Here, we look at Caenorhabditis elegans – a roundworm. When you think of a worm, what do you see? For some…
We use a range of hormone-induced indicators to determine who is male and who is female on a daily basis. European Parliament

Male, female – ah, what’s the difference?

What is a male? What is a female? If you were to conduct a survey, most people would probably have little difficulty expressing some fundamental differences. After all, we learn to tell boys apart from…
New research suggests that seeds could now be formed without the biological process of fertilisation. CIMMYT

Seeds without sex – some racy findings on the cloning of plants

Sex without seed. Seed without sex. It’s been said that the greatest gift of science to humankind would be achieving those two goals. Effective contraceptives such as the pill have pretty much nailed the…
You may achieve your pigmentary potential a little ahead of schedule, but you can’t go grey overnight. Image from shutterstock.com

Monday’s medical myth: stress can turn hair grey overnight

The belief that nervous shock can cause you to go grey overnight (medically termed canities subita) is one of those tales which could nearly be true. There are certainly cases in medical literature of…
The emperor tamarin is one of several species of New World monkey … but how did they get there? Apex Design

Explainer: what is biogeography?

How did you get to work today? I walked to the station, caught a train, then walked to a bus stop and hopped on the 891 express. All this time, while I was travelling, I moved in space – in fact a lot…
Taxonomists are in the business of classifying the life we see around us – plant, animal and otherwise. Gnilenkov Aleksey

Explainer: what is biological classification?

For taxonomists, days often start – and sometimes end – with the question: what’s that? Whether you’re an entomologist, staring at a new species of riffle bug from a rainforest stream, or a paleontologist…

Fly larva brain makes up for poor vision

The fly larva brain’s ability to process visual information can make up for low visual input. Researchers discovered that…
Ants might be a pain … but they play a vital role in maintaining the variety of plant life we see around us. mraandrews

In defence of the humble ant, champion of biodiversity

You’d be hard pressed to find many people who hold ants in high regard. That might be due to their destructive behaviour towards lawns, their ability to infest your house in no time at all, or a willingness…
How do you remember where you’ve been if you don’t have a brain? Tanya Latty

The brainless slime mould that remembers where it’s been

We humans use our large brains to make and store maps of our environment; maps we then use everyday for getting around and for recalling where we’ve been. But we are nothing special – many other animals…
Many species of cone snail, which contain compounds needed to treat neurological diseases, still await discovery. Flickr/Phil Camill

Millions of unknown species likely in danger of extinction

The planet is home to anywhere between two million and 50 million undiscovered species, many of which are at threat from rampant habitat destruction, according to a report by an international team of researchers…
Is aversion and/or attraction to red a biological or cultural construct? Yogurinha Borova

Aggression, danger, love, taste: what red does to your head

Colour is an extraordinary motivator. We sensibly caution against waving a red rag to a bull to avoid provocation – worthy but curious advice, since bulls cannot distinguish red from other colours. We…

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