We can assess the health of coral reefs by the sounds algae make

Tiny bubbles talk photosynthesis.

(Freeman, et al)
  • During photosynthesis, algae produces a symphony of little "pings."
  • The sounds are produced by oxygen bubbles breaking away from the plants.
  • Monitoring reef health through its sound is a new avenue for acoustic ecology.
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Whale earwax reveals 146 years of humanity’s impact

Thanks to museum curators, there's no shortage of the stuff.

Photo credit: Miguel Medina
  • It's just been discovered that whale earwax contains a record of a whale's sub-lethal stressors.
  • It's generally agreed that cortisol is a reliable indicator of a mammal's response to stress.
  • We now have a detailed 146-year impact study of human activity on whales.
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Water may be an inevitable result of the process that forms rocky planets

New research identifies an unexpected source for some of earth's water.

  • A lot of Earth's water is asteroidal in origin, but some of it may come from dissolved solar nebula gas.
  • Our planet hides majority of its water inside: two oceans in the mantle and 4–5 in the core.
  • New reason to suspect that water is abundant throughout the universe.
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Russian reporters discover 101 'tortured' whales jammed in offshore pens

Protected animals are feared to be headed for the black market.

(VL.ru)
  • Russian news network discovers 101 black-market whales.
  • Orcas and belugas are seen crammed into tiny pens.
  • Marine parks continue to create a high-price demand for illegal captures.
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Scientists invent method to extract gold from liquid waste

The next gold rush might take place in our sewers.

Shutterstock
  • Even though we think of it as exceedingly rare, gold can be found all around us.
  • The trouble is, most of the gold is hard to get at; its too diluted in our waste or ocean waters to effectively extract.
  • This new technique quickly, easily, and reliably extracts gold from most liquids.
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