Image by NPS Photo/ Alex Vanderstuyf via Flickr CC BY 2.0

Porcupine study reveals how populations change with predation and foraging

Investigation of predator-prey relationships in a changing environment is an important way to track changes to local ecosystems. A new investigation takes a look at the effects of both top-down (predation-driven) and bottom-up (food and foraging-dependent) systems in predator-prey dynamics. The research team tracked a population of porcupines in Wisconsin, US, over a period of 14-year […]

A Hadza man sleeps on the ground on an impala skin in northern Tanzania.
(Image by David Samson)

Asynchronized sleep schedules and earlier bedtimes among the elderly could be an ancient survival mechanism

An anthropological study of modern hunter-gatherers in Tanzania suggests that the difference in sleep schedules may be an age-old survival mechanism. The team observed daily lives of a modern hunter-gatherer community of the Hadza people in Northern Tanzania. After a day of procuring food, the Hadza, the young and old alike, gather to sleep in […]

A brown-headed cowbird (Molothrus ater). Image by Jim, The Photographer via Flickr

Oil and gas infrastructures increase the number of brood parasitism among grassland songbirds

We’re only beginning to find out all the ways in which industrial activity disrupts the ecosystem, and a new bird study gives yet another example of the unexpected ways in which human activity affects the local fauna. Researchers found that the presence of oil and natural gas infrastructure—such as fences, power lines, and transmitters around […]

High-dimensional color-entangled photon states from a photonic chip, manipulated and transmitted via telecommunications systems.  (Image by Michael Kues)

Multicoloured photons springboard information storage into a quantum leap

Researchers demonstrate how light particles—photons—can become a powerful quantum resource when generated on a photonic chip in the form of colour-entangled quDits. Unlike a qubit, which is a mechanical system with only two states (the classic example being 0 and 1), quDits can have multiple quantum states: for example, a high-dimensional photon can be red and yellow and green and blue […]

Adélie penguin at Lovill Bluff Colony, Mt Siple, West Antarctica. (Image by Jasmine Lee/Australian Antarctic Division)

A rare look at the potential effects of climate change on terrestrial species in Antarctica

Much research has been dedicated to studying the effects of climate change and global warming on the Antarctic ice sheet and sea levels; but the same can’t be said about the ice-free parts of the region, which cover less than 1% of the continent. Researchers modelled the potential effect of climate change under two Intergovernmental […]

Each set of fringe corresponds to a ground movement of ~3 cm.
(Image via the Institut des Sciences de la Terre (ISTerre)

GPS-like data can be used to help predict volcanic eruptions

Scientists are learning to use satellite imaging and mathematical calculations to better predict volcanic activity. Modern satellite technologies, similar to GPS, can now track the ground movements that happen as magma shifts beneath the Earth’s surface. A team of geoscientists are pioneering the use of a process called data assimilation, which incorporates new measurements with […]

There’s a difference between how younger and older people listen to speech-like sounds

Hearing analysis reveals differences in perception of speech-like noises among younger versus older people. A new study suggests that people in different age groups use two distinctive techniques to filter out noise and focus on auditory signals resembling human speech. When younger people listen to these sounds, their brains naturally synchronize to the rhythm, and […]

Concussion protocols not followed in majority of cases at World Cup 2014

In over 60 cases of head collisions at the World Cup 2014, proper concussion assessment protocols were not followed, a new study concluded. Researchers reviewed video footage of 64 matches, identifying 72 head collisions affecting 81 players—far more than the 19 head injuries reported by team physicians to FIFA. The researchers then recorded the number of […]

Fracking byproducts contaminate lakewater with radioactive and carcinogenic chemicals

Results of a new study show that there’s still much to be improved when it comes to the treatment of the byproducts of hydraulic fracturing, which has become a popular method of oil and gas extraction in US and Canada over the past decade. Researchers sampled sediments and porewaters from a lake downstream from two […]

Bobolinks molt while in South America for the winter, and the new feathers they grow there reflect their diet.
(Image by R.M. Jensen)

Special carbon compounds in Bobolink bird feathers contain information about their diet

You are what you eat; and in the case of a tiny migratory grassland bird, the Bobolink, their contain the secrets to what they eat. Information stored within the Bobolink’s plumage can also help with the efforts to protect the declining species. Researchers have found that carbon compounds from the elusive winter diet—what the Bobolink eats […]

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