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Urban Coyotes Never Stray: New Study Finds 100 Percent Monogamy

By Guest PostSeptember 26, 2012Naturechicago area coyotes, coyotes in chicago, coyotes maintain monogamy, female coyote, loyalty of coyotes, urban coyotes

COLUMBUS, Ohio – Coyotes living in cities don’t ever stray from their mates, and stay with each other till death do them part, according to a new study. (more…)

Exeter Scientist Discovers UK’s Rarest Bat in East Devon

By Guest PostSeptember 25, 2012Natureadrian bayley, axe, bat, bat boxes, Britain, colyford, east devon, estuary wetlands, evening, exeter, farming method, fiona mathews, fraser rush, grey, habitat management, isle, light pollution, long eareds, newton abbot, rarest mammal, seaton, university, urbanisation, wet, whispering bats, wight, wild weekend, wildlife

University of Exeter scientist Dr Fiona Mathews has discovered one of Britain’s rarest mammals living in East Devon.

Members of the public were treated to a surprise close-encounter with the Grey long-eared bat, believed to be one of only 1,000 individuals in the country, at an event organised by East Devon District Council’s Countryside Service at the Axe Estuary Wetlands.

The bat evening was part of a regular Wet and Wild Weekend – a celebration of the wildlife of the Axe Estuary Wetlands attracting nearly 500 people. Dr Mathews and fellow bat-enthusiast Adrian Bayley had set up mist nets so that people could meet some of the animals they were hearing on bat detectors, and were amazed to find the country’s rarest bat.

There are only six known breeding colonies of Grey long-eared bats in the UK. This discovery potentially links an isolated group near Newton Abbot with colonies in Dorset and the Isle of Wight. (more…)

The Original Twitter? Tiny Electronic Tags Monitor Birds’ Social Networks

By Guest PostSeptember 24, 2012Nature, Sciencearchipelago, bird, brian otis, broadcast, costa rica, crow, drexel university, ecology, encounternet, forest, frequency, galapagos islands, german, internet, islands, john burt, lysanne snijders, Netherlands, new caledonia, radio tracking, radio transmitter, scotland, social behavior, social mobility, social network, South Pacific, st andrews, Technology, university, Washington, wireless sensor, woodland bird

If two birds meet deep in the forest, does anybody hear? Until now, nobody did, unless an intrepid biologist was hiding underneath a bush and watching their behavior, or the birds happened to meet near a research monitoring station. But an electronic tag designed at the University of Washington can for the first time see when birds meet in the wild.

A new study led by a biologist at Scotland’s University of St. Andrews used the UW tags to see whether crows might learn to use tools from one another. The findings, published last week in Current Biology, supported the theory by showing an unexpected amount of social mobility, with the crows often spending time near birds outside their immediate family. (more…)

Cracking the Oyster’s Code

By Guest PostSeptember 23, 2012Natureadaptations to stress, gene code, oyster code

International team of scientists finds adaptations to stress in oyster genome

When it comes to stress, oysters know how to deal. The tough-shelled mollusks can survive temperature fluctuations, toxic metals and exposure to air, and a new study of their genetic makeup is helping to explain how. (more…)

Blind Cavefish Use Teeth to Find Their Way, New UMD Research Shows

By Guest PostSeptember 19, 2012Natureblind cavefish, denticles, ecuadorian cavefish, mechanosensory nature, sensing tool, skin teeth

COLLEGE PARK, Md. — In a single cave in Ecuador, a species of cavefish has evolved to do something perhaps unique to them, navigate with their teeth. (more…)

Long Menopause Allows Killer Whales to Care for Adult Sons

By Guest PostSeptember 17, 2012Naturefemale killer whales, killer whale, long menopause, menopause

Scientists have found the answer to why female killer whales have the longest menopause of any non-human species – to care for their adult sons. (more…)

Surviving Without Ice

By Guest PostSeptember 15, 2012Environment, Natureamphipods, apherusa glacialis, arctic crustaceans, arctic ocean, disney movie, Environment, finding nemo, fram strait, geir johnsen, gulf stream, jorgen berge, life cycle, mark moline, melt, nemo hypothesis, north pole, ocean current, sea ice, shrimp

Arctic crustaceans use currents, deep-water migration to survive sea ice melts

With sea ice in the Arctic melting to record lows in summer months, marine animals living there face dramatic changes to their environment. Yet some crustaceans, previously thought to spend their entire lives on the underside of sea ice, were recently discovered to migrate deep underwater and follow ocean currents back to colder areas when ice disappears.

“Our findings provide a basic new understanding of the adaptations and biology of the ice-associated organisms within the Arctic Ocean,” said Mark Moline, director of the University of Delaware’s School of Marine Science and Policy in the College of Earth, Ocean, and Environment. “They also may ultimately change the perception of ice fauna as imminently threatened by the predicted disappearance of perennial sea ice.” (more…)

Crows React to Threats in Human-like Way

By Guest PostSeptember 11, 2012Natureamygdala of mammals, behavioral action, birds in captivity, conflict between birds, crows, glucose technique, react to threats, visual sensation

Cross a crow and it’ll remember you for years.

Crows and humans share the ability to recognize faces and associate them with negative, as well as positive, feelings. The way the brain activates during that process is something the two species also appear to share, according to new research being published this week. (more…)

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