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Updated: 32 min 16 sec ago

Scouting the eagles: Proof that protecting nests aids reproduction

Tue, 01/09/2018 - 19:49

Reproduction among bald eagles in a remote national park in Minnesota was aided when their nests were protected from human disturbance, according to a new study.

Deadly disinfection in ant colonies

Tue, 01/09/2018 - 09:32

Ants kill colony mates infected with deadly diseases when they are unable to prevent them from falling sick in the first place. In doing so, the ants protect their colony from the outbreak of an epidemic.

Closing roads counters effects of habitat loss for grizzly bears

Tue, 01/09/2018 - 07:02

It's simple math, says a scientist. The closer grizzly bears are to humans, the more ways there are for the bears to die. Put more simply, more roads equal fewer grizzly bears.

What species is most fit for life? All have an equal chance, scientists say

Mon, 01/08/2018 - 17:19

There are more than 8 million species of living things on Earth, but none of them -- from 100-foot blue whales to microscopic bacteria -- has an advantage over the others in the universal struggle for existence.A trio of scientists report that regardless of vastly different body size, location and life history, most species are equally 'fit' in the struggle for existence.

Agricultural fungicide attracts honey bees

Mon, 01/08/2018 - 10:10

When given the choice, honey bee foragers prefer to collect sugar syrup laced with the fungicide chlorothalonil over sugar syrup alone, researchers report.

DNA evidence used to protect the rhinoceros from extinction

Mon, 01/08/2018 - 08:59

A new study shows that genetic database now being used in the fight against poaching the rhinoceros.

How bacteria turbocharged their motors

Mon, 01/08/2018 - 08:13

Using detailed 3-D images, researchers have shown how bacteria have evolved molecular motors of different powers to optimize their swimming.

Tick exosomes may aid transmission of viruses to vertebrates

Thu, 01/04/2018 - 13:35

Scientists have shown for the first time that exosomes from tick cells can aid transmission of viral proteins and genetic material from arthropod to vertebrate host cells, according to new research.

Aversion to holes driven by disgust, not fear, study finds

Thu, 01/04/2018 - 11:16

Clusters of holes may be evolutionarily indicative of contamination and disease -- visual cues for rotten or moldy food or skin marred by an infection.

Impact of lions living alongside giraffe populations

Wed, 01/03/2018 - 17:47

New research is calling for an urgent review into how populations of giraffes are managed in the wild when living alongside lions.

Little wasp bodies mean little wasp brain regions

Wed, 01/03/2018 - 14:01

A new study looking at 19 species of paper wasps found that body size may lead to variation in the complex parts of their brains.

Automated bird identification system based on bird calls and song

Wed, 01/03/2018 - 08:11

Birds play an important role in a wide variety of ecosystems as both predator and prey, in controlling insect populations, pollinating and seed dispersal for many plants, and in releasing nutrients on to land and sea in the form of guano. From a scientific perspective it is therefore crucial to monitor bird populations. Now, research could pave the way to an automated bird identification system based on bird calls and song.

Lethal fungus that causes white-nose syndrome may have an Achilles' heel

Tue, 01/02/2018 - 13:32

In the course of genomic analyses of the fungus behind white-nose-syndrome, a devastating disease that has killed millions of bats in North America, US Forest Service scientists discovered something very surprising: brief exposure to UV-light kills Pseudogymnoascus destructans.

Social susceptibility: Leader-follower dynamics of influential individuals in a social group

Tue, 01/02/2018 - 09:42

This is the story of a spider, small but bold. This particular arachnid, in fact, has helped to debunk the Great Man Theory, a 19th-century notion positing that highly influential individuals use their power -- be it personal charisma, intelligence, wisdom or political skill -- to maximize their impact in shaping the course of history.

Invasive tree species: Call for action to tackle threat to a global biodiversity hotspot

Tue, 01/02/2018 - 08:33

An invasive Australian tree is now posing a serious threat to a global diversity 'hotspot' in the natural forests of Jamaica's Blue and John Crow Mountains National Park. The tree species, Pittosporum undulatum, known locally as 'mock orange', is threatening many rare and endangered species, some of which are found nowhere else in the world. Scientists are urging the relevant institutions to prioritise a program of control of this species.

Veterinary surgeons perform first-known brain surgery to treat hydrocephalus in fur seal

Thu, 12/28/2017 - 08:09

A neurosurgical team has successfully performed what is believed to be a first-of-its-kind brain surgery on a Northern fur seal named Ziggy Star in an attempt to address her worsening neurologic condition. Ziggy, an adult female, is recovering well at her permanent home at Mystic Aquarium in Mystic, Conn.

The Iberian brown bears do not descend from those fled from the north during the Ice Age

Wed, 12/27/2017 - 08:00

According to the glacier refuges theory, after the last glaciations the bears of northern Europe sought shelter in the South. Researchers now reject this idea: they have reconstructed the colonization of brown bears in the Iberian Peninsula and have shown that the lineage of the Pleistocene bears was lost.

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