Genetics

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Saying no to all gene technology is an ethical short-circuit

Conventional breeding techniques result in major and uncontrolled modifications to the genetic material of plants and animals. If arguments based on the ‘precautionary principle’ are used as blindly on this issue as in the gene technology debate, then we are condemning the world to starvation.

Supergenes helped bring alien plant to Norway

The plant is called common ragweed, and if you are allergic to pollen, you should probably pay extra close attention. This is one of the invasive plants that supergenes have brought to Norway.

Darwin’s giant daisies and evolution

How animals and plants adapt to the environment is often particularly evident on islands. Now Darwin’s giant daisies are helping researchers understand a little more about how these plants actually go about adapting.

Grey wolf in the forest

The Norwegian wolf is extinct

The Norwegian wolf died out in the wild a long time ago. The wolves in Norwegian forests today are Finnish. Inbreeding is making them prone to extinction as well.

Some sparrows sitting in a tree

Inbreeding detrimental for survival

Inbred birds don’t live as long and have fewer offspring than non-inbred birds. Inbreeding is equally harmful regardless of where the birds live.

Panthera leo’s family tree takes shape

Once upon a time, lions were the world’s most widespread mammals. Now we know more about their genealogy – and that could make it easier to help the species survive.

Planting the seeds for a bioliterate tropical country

Ecologist Daniel H. Janzen has spent virtually all of his half-century career trying to catalogue and understand the creatures in a patch of dry tropical forest in northwestern Costa Rica. Little did he realize his efforts would evolve into building a sea-to-summit conservation area — and a drive to inventory all million species in the country in partnership with the Costa Rican government.

How plants respond to attacks

Plants have to defend themselves against drought, enemies and disease. But different threats demand different responses. So how do plants know what’s attacking them?

Norwegian public asked to name a species

The moss world will never be the same. The moss Norwegian researchers thought they knew has played a trick on them. In return, researchers are calling on the Norwegian public to name a new species.

In the bullfinch world, she gets to decide

A lot of birdwatchers like the bullfinch. They’ve probably noticed that the female can chase off the more colourful male from the bird feeder. That makes this species different.

Is the woolly mammoth really gone for good?

Should we reintroduce animal species that have died out? New technology may offer opportunities that no one could imagine a few decades ago. But the answer may not be as simple as you think.

Why the passenger pigeon died out

The passenger pigeon was once among the most numerous species on earth. The last passenger pigeon died in the Cinncinati Zoo just over 100 years ago. How did it all go so wrong?

Stress in the nest can have lifelong effect

Why do some sparrows hatch six chicks while others don’t hatch any? How does upbringing affect the remainder of their lives? Physiological stress in the nest can actually affect birds’ DNA and possibly their lifespan.