Tag: animal kingdom

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World's oldest DNA: Scientists discover 2-million-year-old remains of plants and animals

Genetic material from the elephant relative mastodon, cedar and spruce has now been discovered in a warmer Greenland of yore. It is the oldest DNA ever found.

Here are 12 of the most exciting prehistoric animal discoveries

Palaeontologist Jørn Hurum takes us through the highlights of dinosaurs and other extinct animals over the past 20 years.

Animal populations saw average declines of 69 per cent, but what does that actually mean?

The figure from the new WWF report can easily be misinterpreted.

Biological sex: What kind of variations exist in nature?

In plants and animals, one type of gamete – reproductive cell – is larger than the other.

Here’s why Rattus norvegicus has taken over Europe

The black rat spread across Europe in two waves, first in Roman times and then in the Middle Ages. But today it has had to cede Europe to the ‘Norwegian’ brown rat.

Why didn't our ancient ancestors get cavities?

ASK A RESEARCHER: People used to not have cavities. So why do we get them today?

Mammoths and other large animals survived in the north much longer than previously believed

New DNA research indicates that the climate, not humans, led to the demise of these large creatures.

Calves not allowed to stay with their mother are more stressed and grow less well

Consumers of milk and cheese want cows and calves to stay together.

It’s not just city dwellers who like large carnivores

Norway and Sweden have seen an increase in wolf, bear, wolverine and lynx populations in recent years. Meanwhile, people’s positive attitudes towards carnivores has remained high. There are more who like them than dislike them.

Do birds like modern architecture?

Birds need hiding places, and some like to build nests in our buildings. So how are birds dealing with all the flat roofs and clean lines in modern construction?

Is it okay to feed your dog leftovers?

ASK A RESEARCHER: Many dogs love to eat the same thing that we humans serve for dinner, but is it good for them?

Your cat meows mostly for you

Cats don't often meow to other adult cats, but they quickly learn to use sounds to talk to humans.

Why are we more concerned about someone seeing us fall on our face than whether it hurt?

ASK A RESEARCHER: Avoiding social pain is often more important than avoiding physical pain, according to psychology researcher.

How annoying is it for sheep to wear a bell all summer long?

Do sheep bells qualify as mistreatment of animals?

Can wild animals have mental illnesses?

Blame it on humans when animals become mentally ill.

What’s a moose to eat?

Moose like to browse on young saplings. Forest owners count on their trees for timber. Researchers are looking for better ways to meet both needs.

Norwegians more tolerant of illegal wolf shooting

Sweden has ten times more wolves than Norway, yet Norwegians are less tolerant of wolves in the wild and are more likely to accept illegal shooting of the animals.

An in-trawl camera for fish

A cod swims right past the camera. These images could make it easier to set fishing quotas.

Calves need more motherly care

Calves are usually separated from cows right after birth. A new study indicates that they should get more time with their mothers.

Thin Arctic foxes suffer more from industrial pollutants

The Arctic may be a long way from the industrial world, but harmful chemical substances find their way northward and concentrate in animals there. Researchers have now found a disturbing trend: concentrations of one harmful chemical family are higher in thin Arctic foxes than in their more well-fed brethern.