Biology

Bats can remember a ringtone for years

In order to track down prey, some bats follow the mating calls of other animals. How long can you remember such sounds? There are initial indications of this.

Too hot for the dog's offspring

Rising temperatures mean that African wild dogs get their puppies later and later. The adaptation could be a disaster for the species.

Huge bacterium is one centimeter long

A newly discovered bacterium is breaking all standards. Its huge size is possible only thanks to some tricks. In addition, a quarter of its genome seems to produce antibiotics.

To water, land and in the bushes

Bird nests are often amazing engineering feats. From floating platform to meter-long grass netting, everything is represented. All these buildings have the same goal.

Megalodon was probably the top robber of the top robbers

Megalodon was a fearsome predatory fish - there's no doubt about that. However, its position in the food chain was probably even more impressive than expected.

Moths are brown only for the human eye

Nice buttons have the call to be gray and brown. But under the right light they show dazzling colors.

At night, our face becomes the reproductive area

Our face is full of small roommates: According to a study, hair balm mites could soon enter into a permanent existence. Your genome is already significantly reduced.

Orcas ramming yachts

Off Gibraltar and in the Gulf of Cádiz, a group of killer whales are attacking boats more and more often. The orcas deliberately destroy the oars and induce fishermen to turn back. What drives you to do this?

The world's largest freshwater fish swims in the Mekong

Almost four meters long and weighing 300 kilograms - a stingray from the Mekong River breaks the record as the largest freshwater fish in the world. The catch is now intended to provide researchers with data.

In tea bags, inheritance nipple slumbering dozens of insect species slumber

Insects also leave traces of DNA. A new method now makes it possible to filter the genetic material of arthropods even from dried plant material.

The Glacier Polar Bears

Eisbears need sea ice to hunt for seals. But that disappears. A newly discovered population in Greenland uses another saving strategy.

"Silent" mutations are not silent after all

Genetic studies on yeast cultures question a basic assumption of mutations and evolution. The problem: There are also many important analysis techniques based on this.

Superworms eat styrofoam

The larvae of the large black beetle can survive on plastic. The new possibilities for processing the garbage flood may open on our planet.

Chewed catnip protects against mosquitoes

House tigers idolize catnip not only because the plant intoxicates them. It also has a very practical reason.

Gene mutations made dogs become trusting

Apparently, genetic changes caused dogs to be able to form a social bond with humans. A stress hormone played a decisive role in this.

Chickens only came with the grain cultivation

An analysis suggests that chickens were only domesticated a relatively short time ago. The animal was presumably attracted by grain, which grew in the fields of sedentary farmers.

Wilderness through grazing

The Knepp Castle estate in southern England has changed from a conventional farm to an absolute hotspot of biodiversity in 20 years.

The mystery of the long giraffe neck

Did the long neck give the animals an advantage in the fight for sexual partners? A study provides new clues.

Avian flu pandemic is increasingly worrying science

Mass infections in wild birds jeopardize species, are difficult to contain and increase the likelihood that the virus will jump over to humans.

Elephants distribute plastic waste over feces

In the environment of Asian national parks, hungry elephants eat a lot of plastics. Then distribute the leftovers in nature. This puts a strain on the food chain.

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