Nature (category filter × )

Is a long-dormant Russian volcano waking up? It’s complicated

sciencenews.org
  • New study found a large uptick in the number of earthquakes in Russia’s Kamchatka Peninsula, and it could be Bolshaya Udina.
  • Bolshaya Udina hasn’t erupted for at least 10,000 years, and is presumed to be no longer active, but this could mean that it’s waking up.
  • But some scientists say that it’s too hard to say, and these signs could be pointing to a different volcano.

Back from the dead: Some corals regrow after 'fatal' warming

phys.org
  • 38% of coral colonies, lost to a heat wave in 2003 around Spain’s Columbretes Islands, show signs of regrowth.
  • This finding is promising in terms of saving coral reefs around the world.
  • Coral is made of thousands of tiny creatures called polyps which, in the damaged coral, shrunk and gradually -- over several years -- grew into new formations.
  • It’s the first time that this phenomenon was observed and it gives hope.
  • However, the regrowth is still too slow, ~3 millimeters per year, considering that heat waves are happening more often.

We can tell where a whale has travelled from the themes in its song

newscientist.com
  • Whales sing different songs in different regions of the world, and whales that pass through a new place also learn its song.
  • By recording whale songs in different locations and breaking them down, researchers identified three distinct song types from 52 whales.
  • Type 1 dominated the central Pacific, type 2 was common in the west, and type 3 was only heard near eastern Australia.
  • This means that scientists can pinpoint where a whale has come from by the song its singing.

Humans haven’t just changed what dogs look like—we’ve altered the very structure of their brains

sciencemag.org
  • Profound insights from new study show that humans have influenced the development of dog brains -- not just their looks and physical traits.
  • Analysis of MRI brain scans from 62 purebred dogs uncovered six networks in dog brains that varied from dog to dog, depending on what they were bred for.
  • For example, police dogs had differences in the sight and smell network, and fighting dogs showed alterations in the stress response and anxiety network.
  • The study shows that we have a greater influence on the beings around us than we thought.

Clever crows

news.harvard.edu
  • Cleverly designed experiment on 15 Caledonian crows shows that animals can enjoy using tools to solve tasks.
  • Series of tests have shown that crows are more optimistic after tool use.
  • It suggests that there’s much more going on in their heads than we thought, and they can enjoy problem-solving just like humans do.
  • Study author hopes these findings will be used to improve the enclosures of captive animals by adding complex, species-specific enrichment.

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  • Psychology Psychology (53) Uncertainty and Surprise Jointly Predict Musical Pleasure and Amygdala, Hippocampus, and Auditory Cortex Activity
  • Cosmos Cosmos (25) Kilometer-Long Space Tether Tests Fuel-Free Propulsion
  • History History (14) Humans survived off rodents in the mountains during the last ice age, study says
  • Society Society (59) Majority of anti-vaxx ads on Facebook are funded by just two organizations
  • Medicine Medicine (53) Antibody injection stops peanut allergy for 2 to 6 weeks, study shows
  • Technology Technology (61) Hologram-like device animates objects using ultrasound waves
  • Nature Nature (39) Is a long-dormant Russian volcano waking up? It’s complicated